An asteroid impact on Mars 11 million years ago sent fragments of the red planet hurtling through space. One of these pieces eventually crashed into Earth, making its way to Purdue University and becoming known as the Lafayette Meteorite.&nbsp;



This rare find has been instrumental in unlocking secrets of <a href="https://www.earth.com/news/manganese-discovery-ancient-mars-earth-like-water-lake-habitable/" target="_blank" rel="noreferrer noopener">Mars</a>’ watery past, with new research recently published in the journal <a href="http://dx.doi.org/10.7185/geochemlet.2443" target="_blank" rel="noreferrer noopener">Geochemical Perspective Letters</a> that provides insight into the timing and nature of Mars’ ancient water activity.



<h2 class="wp-block-heading" id="h-tracing-mars-watery-past">Tracing Mars’ watery past</h2>



Scientists have long known that the Lafayette Meteorite interacted with liquid water on Mars, but the exact timing of this event was uncertain.&nbsp;



Dr. Marissa Tremblay, an assistant professor at Purdue University’s <a href="https://www.eaps.purdue.edu/" target="_blank" rel="noreferrer noopener">Department of Earth, Atmospheric, and Planetary Sciences</a> (EAPS), led an international research team to determine the age of the water-altered minerals in the meteorite, pinpointing it to 742 million years ago.



“Dating these minerals can therefore tell us when there was liquid water at or near the surface of Mars in the planet's geologic past,” Tremblay explained.&nbsp;



The findings suggest that while liquid water wasn’t abundant on the surface at this time, it likely came from melting subsurface ice, or permafrost, caused by intermittent volcanic activity - a phenomenon still observed on Mars today.



<h2 class="wp-block-heading" id="h-preserving-a-moment-in-mars-geological-timeline">Preserving a moment in Mars’ geological timeline</h2>



The study not only identified when water interacted with the meteorite but also established that the dating was unaffected by events after the meteorite left Mars.&nbsp;



“The age could have been affected by the impact that ejected the Lafayette Meteorite from Mars, the heating it experienced during the 11 million years it was floating in space, or the heating when it fell to Earth,” Tremblay said.&nbsp;



However, the team confirmed that none of these factors altered the age, validating the timeline of <a href="https://www.earth.com/news/mars-lost-most-of-its-water-but-where-did-it-go/" target="_blank" rel="noreferrer noopener">water</a> interaction.



Study co-author and Purdue EAPS researcher Ryan Ickert applied heavy isotope analysis to further verify that previous data on the meteorite’s water-rock interaction had likely been skewed by other geological processes.&nbsp;&nbsp;



“This meteorite uniquely has evidence that it has reacted with water. The exact date of this was controversial, and our publication dates when water was present,” said Ickert.



<h2 class="wp-block-heading" id="h-mysterious-journey-of-the-meteorite">Mysterious journey of the meteorite </h2>



The Lafayette Meteorite’s journey to Purdue is something of a mystery. It was found in a university drawer in 1931, though how it got there remains unknown.&nbsp;



In previous research, Tremblay and her team used crop disease markers from organic contaminants found on the meteorite to narrow down when it might have fallen to Earth.



Once the meteorite was ejected from Mars, it endured constant cosmic ray bombardment in space, which produced certain isotopes, offering clues to its time of impact on Earth.&nbsp;



“Many meteoroids are produced by impacts on Mars and other planetary bodies, but only a handful will eventually fall to Earth,” Tremblay said.



<h2 class="wp-block-heading" id="h-planetary-time-capsules">Planetary time capsules</h2>



Meteorites like Lafayette serve as planetary time capsules, offering invaluable data on the geological and environmental history of their <a href="https://www.earth.com/news/most-meteorites-can-be-traced-to-three-asteroid-families/" target="_blank" rel="noreferrer noopener">home worlds</a>. With their dense structure, metallic content, and magnetic properties, meteorites are often distinguishable from Earth rocks.&nbsp;



“We can identify meteorites by studying what minerals are present in them, their mineral relationships, and by checking for a fusion crust formed during entry into Earth’s atmosphere,” Tremblay explained.&nbsp;



By analyzing these traits and their chemical signatures, scientists can often determine a meteorite’s planetary origin.



<h2 class="wp-block-heading" id="h-complex-history-of-meteorites">Complex history of meteorites</h2>



This research marks a significant milestone for the team, which included scientists from institutions across the globe, such as the Scottish Universities Environmental Research Center (SUERC), the University of St. Andrews, the University of Glasgow, the University of Bristol, and London’s <a href="https://www.nhm.ac.uk/" target="_blank" rel="noreferrer noopener">Natural History Museum</a>.&nbsp;



“Before moving to Purdue, Ryan and I were both based at SUERC, where the argon-argon isotopic analyses of the alteration minerals in Lafayette took place,” Tremblay said.&nbsp;



Their partners at SUERC and the Natural History Museum have long contributed to studying Lafayette’s complex history.



<h2 class="wp-block-heading" id="h-dating-minerals-in-meteorites">Dating minerals in meteorites</h2>



Dating the water-altered minerals in Lafayette, and others in its class of Martian meteorites called nakhlites, has been a central focus in planetary science, as they uniquely capture moments when liquid water was present on Mars.&nbsp;



Due to complex alterations over time, previous attempts to date these minerals were plagued with uncertainties.&nbsp;



However, the team has now developed a robust dating method that could be applied to other meteorites, enhancing our understanding of when water might have been present on Mars and other planetary bodies.



<h2 class="wp-block-heading" id="h-the-future-of-planetary-science">The future of planetary science</h2>



Thanks to the Stahura Undergraduate Meteorite Fund, Tremblay and Ickert’s research on the Lafayette Meteorite will continue, with the involvement of undergraduate students in Purdue EAPS.&nbsp;



This opportunity allows students to engage in real-world planetary science, helping to reveal the intricate histories of meteoritic samples.



Tremblay and her team’s work on the Lafayette Meteorite highlights its scientific significance, revealing a complex history that ties it to Mars’ geological past.&nbsp;



Their findings not only deepen our understanding of Mars but also set a precedent for future studies that might unveil even more about the red planet’s climate history, water activity, and potential for supporting <a href="https://www.earth.com/news/some-mars-rocks-contain-signs-of-life-scientists-call-to-bring-them-back-to-earth/" target="_blank" rel="noreferrer noopener">life</a>.



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Meteorite that struck Mars reveals when the planet had liquid water

An asteroid impact on Mars 11 million years ago sent fragments of the red planet hurtling through space. One of these pieces eventually crashed into Earth, making its way to Purdue University and becoming known as the Lafayette Meteorite.&nbsp; This rare find has been instrumental in unlocking secrets of Mars’ watery past, with new research recently published in the journal Geochemical Perspective Letters that provides insight into the timing and nature of Mars’ ancient water activity. Tracing Mars’ watery past Scientists have long known that the Lafayette...

Environmentalists are again taking aim at the company that proposed the Keystone XL pipeline - this time for another of its projects they fear would send hundreds of supertankers laden with crude oil down the Atlantic coast to refineries in <a href="http://www.earth.com/image/tropical-storm-imelda-brings-extreme-rainfall-to-texas/">Texas</a> and Louisiana.
TransCanada is behind the Energy East Pipeline project, a 4,600-kilometer pipeline, or nearly 3,000 miles, that would carry crude oil from tar sands in Western Canada to the East Coast, where it would then be shipped to refineries along the Texas Gulf Coast. When completed, the project would carry 1.1-million barrels of crude oil every day from Alberta and Saskatchewan to refineries in Eastern Canada.
Plans call for converting a natural gas line for part of the route and then building a new pipeline in Alberta, Saskatchewan, Manitoba, Eastern Ontario, <a href="https://en.wikipedia.org/wiki/Italy">Québec</a> and New Brunswick to connect to the existing pipeline. Environmentalists protest Energy East Pipeline project
The Natural Resources Defense Council, Sierra Club and other environmental groups are concerned about potential spills of tar sands diluted bitumen along the route in Canada that goes over thousands of rivers, streams and lakes. They also warned a spill along the East Coast could prove devastating to communities that depend on tourism and fisheries and are not prepared to handle an event of this kind.
The groups held a conference call Tuesday with the media, in releasing a <a href="https://www.nrdc.org/resources/tar-sands-atlantic-ocean-transcanadas-proposed-energy-east-pipeline">report</a> , "Tar Sands in the Atlantic Ocean: Transcanada's Proposed Energy East Pipeline," that lays out their case against the project.Environmentalists protest Energy East Pipeline project
"What we have is a proposal to move nearly 300 super tankers down the eastern seaboard, and we don't have the techniques and technology to contain and clean a spill of tar sands diluted bitumen should one happen," said Anthony Swift, the Canada project director for the Natural Resources Defense Council.
TransCanada said that the project would adhere to stringent safety standards and that it would be the responsibility of its customers of where they ship the oil, noting that "it does not own or operate ships for the delivery of oil."
"Safety remains our top priority," TransCanada spokesman Jonathan Abecassis said in an email to The Associated Press. He said the port in New Brunswick "will have a number of preventive safety measures" including the use of trained pilots and advanced navigational and docking technologies.
"We are working in collaboration with local authorities and first responders during the development of our emergency plan to ensure that the plan is adapted to local circumstances with resources placed strategically across the route to react quickly in the unlikely event of an emergency," he said.
Abecassis said the project is being reviewed by the National Energy Board in Canada. Environmentalists are hopeful the United States will express its opposition to the project during this review process and enact a ban on the shipment of tar sands in U.S. waters.
The project comes less than a year after President Barack Obama rejected the Keystone XL project following seven years of political wrangling, arguing it would have undercut U.S. efforts to clinch a global climate change deal. The Paris agreement last December aims to keep the global temperature rise below 2 degrees Celsius (3.6 degrees Fahrenheit) compared with preindustrial times.
Environmentalists are hoping the same grassroots success they had with Keystone will bring down the Energy East project. In a sign they may use some of the same tactics, the National Resource Defense Council has already launched a petition against the project that highlights the role tar sands play in worsening global warming.
"We're here today because the threat of climate change is increasingly dire, and we have a critical but narrow window of opportunity to take action," Sierra Club's Cathy Collentine said. "That includes action to stop tar sands infrastructure from being built and to take action to ban the transport of tar sands in tankers that would increase the threat to our communities, environment and our climate."
© 2016 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Learn more about our Privacy Policy and Terms of Use.

Environmentalists protest Energy East Pipeline project

Environmentalists are again taking aim at the company that proposed...

<div>
<div class="img-wrapper">NASA sees Tropical Storm Mirinae approaching landfall. Tropical Storm Mirinae was moving through the Gulf of Tonkin early on July 27 when <a href="https://en.wikipedia.org/wiki/NASA">NASA's</a> Aqua satellite passed overhead. Forecasters expect Mirinae to make landfall in northeastern Vietnam later in the day.</div>
The Moderate Resolution Imaging Spectroradiometer or <a href="http://www.earth.com/image/swirling-sediment-caspian-sea/">MODIS</a> instrument that flies aboard NASA's Aqua satellite captured an image of Tropical Storm Mirinae early on July 27 as it flew over the South China Sea's Gulf of Tonkin. The MODIS image revealed a large band of thunderstorms east of Mirinae's center were already over the coast of northeast Vietnam. The center of the storm was just west of Hainan Island, China. Microwave satellite data showed an elongated eye. Therefore NASA sees Tropical Storm Mirinae approaching landfall

Mirinae made landfall over the northeast coast of Vietnam, around 1200 UTC (8 a.m. EDT) about 60 nautical miles south-southeast of Hanoi. The Joint Typhoon Warning Center (JTWC) reported that surface winds from Bach Long Vi Island, Vietnam peaked at 48 knots (55.3 mph/88.4 kph). Bach Long Vi Island is about half way between Hai Phong, Vietnam and China's Hainan Island in the Gulf of Tonkin.

The Vietnam National Hydro-meteorological Service (VNHS) continued a tropical storm warning. Details can be found on the VNHS website: <a href="http://www.nchmf.gov.vn/web/en-US/43/Default.aspx" target="_blank" rel="noopener noreferrer">http://www.nchmf.gov.vn/web/en-US/43/Default.aspx</a>.

The JTWC issued their final warning on Mirinae at 1500 UTC (11 a.m. EDT) on July 27. At that time, Mirinae was located about 58 nautical miles south-southeast of Hanoi, Vietnam. The center of the storm was near 20.3 degrees north latitude and 106.0 degrees east longitude. Maximum sustained winds were near 45 knots (51.7 mph/83.3 kph). Mirinae is moving to the west-northwest at 9 knots (10.3 mph/16.6 kph).

The JTWC forecast calls for the storm to continue to move inland and dissipate over the next day.


</div>
<div></div>

NASA sees Tropical Storm Mirinae approaching landfall

NASA sees Tropical Storm Mirinae approaching landfall. Tropical Storm Mirinae...

<div>
<div class="img-wrapper">Tropical Storm Frank weakened to a tropical storm on July 28, 2016 and satellite imagery shows that winds and thunderstorms have continued to weaken.</div>
On July 27, <a href="https://en.wikipedia.org/wiki/NASA">NASA's</a> RapidScat instrument observed Frank's strongest sustained winds were near 30 meters per second (67 mph/108 kph) north of the center. Tropical-storm-force winds extended outward up to 60 miles (95 km) from the center. Frank weakened from a hurricane to a tropical storm by 5 p.m. EDT on July 27.

The RapidScat instrument flies aboard the International Space Station and measures winds over an ocean surface. Images are created at NASA's Jet Propulsion Laboratory in Pasadena, <a href="http://www.earth.com/image/shasta-lake-northern-california/">California</a>.

Later on July 27, at 21:35 UTC (5:35 p.m. EDT) the Atmospheric Infrared Sounder or AIRS instrument aboard NASA's Aqua satellite captured infrared data of Frank. The AIRS data showed that the coldest cloud top temperatures of at least minus 63 degrees Fahrenheit (minus 53 degrees Celsius) and strongest thunderstorms were only along the southern quadrant of the storm.

At 5 a.m. EDT (0900 UTC), the center of Tropical Storm Frank was located near 23.6 degrees latitude and 123.7 degrees west longitude. That's about 875 miles (1,410 km west of the southern tip of Baja California. Maximum sustained winds have decreased to near 40 mph (65 kph) with higher gusts.

Frank was moving toward the west-northwest near 9 mph (15 kph), and the National Hurricane Center expects a gradual turn toward the west and west-southwest over the next 48 hours as the storm weakens.

NOAA GOES-West infrared image of Tropical Storm Frank was taken on July 28, 2016 at 1315 UTC (9:15 a.m. EDT). The GOES-West image showed very weak storms and mostly along the southern quadrant, as the infrared imagery from AIRS had shown 16 hours before. The GOES image was generated at the NASA/NOAA GOES Project at NASA's Goddard Space Flight Center, Greenbelt, Maryland.

Forecaster Pasch at NOAA's National Hurricane Center (NHC) said that "All of the deep convection associated with Frank has dissipated, and since the cyclone is moving over waters cooler than 23 degrees Celsius, regeneration of thunderstorms within the circulation is not anticipated. Therefore, the cyclone is likely to degenerate into a post-tropical remnant low pressure area later today.

NHC said that the storm will continue to weaken as the circulation spins down over the next couple of days. Frank is expected to dissipate by Sunday, July 31.


</div>
<div></div>

Tropical Cyclone Frank is fading fast

Tropical Storm Frank weakened to a tropical storm on July...

Sri Lanka is working to protect mangrove forests. Sri Lanka's government and environmentalists are working to protect tens of thousands of acres of mangrove forests - the seawater-tolerant trees that help protect and build landmasses, absorb carbon from the environment and reduce the impact of natural disasters like tsunamis.
All 37,000 acres (15,000 hectares) of mangrove forests in Sri Lanka are now earmarked for preservation.
Researchers say at least 6,000 acres (2,428 hectares) were previously destroyed, mostly in the last 25 years. Mangroves were cleared to make room for shrimp farming, to produce salt or to make firewood. Government forces destroyed forests during the country's nearly 26-year civil war, which raged until 2009, because rebel fighters used them as hideouts.
Now the <a href="https://en.wikipedia.org/wiki/South_Asia">South Asian</a> island nation is showing an interest in retaining what is left. President Maithripala Sirisena, who took office last year, has retained the environment portfolio and has shown a personal interest in the project.
There are 22 species of mangroves in Sri Lanka, a third of all mangrove species found around the world. They grow in brackish water estuaries which are not favorable for other plants to grow, and create many environmental and health benefits:
- Their above-ground roots, mostly submerged in the water, produce food for small fish, crabs and shrimp and serve as a haven for breeding. Small-scale lagoon fishers have benefited from the ecosystem for generations.
- Their roots can accumulate soil particles and build landmasses while also acting as a buffer against coastal erosion. In the 2004 Asian tsunami that killed more than 35,000 Sri Lankans, areas covered by mangrove forests suffered less damage as the trees absorbed some of the energy of the waves.
- The trees absorb carbon dioxide more efficiently than other plants. Forests typically release carbon dioxide into the atmosphere as plant matter decomposes, but because mangrove habitat is much wetter, there is less oxygen activity, leaving more carbon in the soil.
- Medical researchers have isolated from 15 mangrove species anti-cancer compounds that have been shown to fight breast and liver cancer cells. Dr. Sameera Samarakoon, who was part of research by the University of Colombo, says these findings are being studied further.
Seacology, a U.S.-based nongovernmental organization, last year launched a $3.4 million, five-year mangrove conservation and replanting program with the Sri Lankan government. A museum funded by the group opened in Pambala on Tuesday, World Mangrove Day, to exhibit mangroves, fish and crab species bred in the lagoons, with facilities for study and research.
The Small Fishers' Federation, Seacology's Sri Lankan partner, is running a nursery near Pambala Lagoon, some 65 kilometers (40 miles) north of the capital, Colombo, to produce 500,000 seedlings for replanting. One thousand acres (404 hectares) of mangroves are expected to be replanted by the end of this year.
The project plans to rope in 15,000 persons, mostly the unemployed from around the lagoons, to protect mangrove plantations in return for microloans to set up small businesses.
"By offering training and funding to develop alternatives to cutting mangroves, the project's livelihoods program is alleviating poverty as well as protecting mangroves," said Duane Silverstein, Seacology's executive director. "It's a win-win situation."
Anuradha Wickramasinghe, head of the fishers' federation, says he first felt the importance of protecting mangroves in the 1990s, when mangrove forests were being fast destroyed by shrimp farmers. That sent fishermen's fish and crab catch into decline.
Sri Lanka's tourism industry is expanding along the coastline, creating the possibility for conflict, though the government intends to promote ecotourism in mangrove areas.
Srilal Mittalapala, of the Sri Lanka Hoteliers' Association, says the industry hopes the project will have a balance between conservation and development.
"The tourism industry learned a bitter lesson from the tsunami and we understand the importance of the mangroves," Mittalapala said.
© 2016 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Learn more about our Privacy Policy and Terms of Use.

Sri Lanka is working to protect mangrove forests

Sri Lanka is working to protect mangrove forests. Sri Lanka's...

<div>
<div class="img-wrapper">Study: Protected areas benefit broad range of species. The world's protected areas do benefit a broad range of species - scientists from a collaborative research project led by the University of Sussex have discovered for the first-time. Study: Protected areas benefit broad range of species</div>
The study, carried out by the University of Sussex working together with the Natural History Museum and the UN Environment Programme's World Conservation Monitoring Centre, is the largest ever analysis of globally protected areas.

By analysing biodiversity samples taken from 1,939 sites inside and 4,592 sites outside 359 protected areas, scientists have discovered the protected area samples contain 15 percent more individuals and 11 percent more species compared to samples from unprotected sites. Study: Protected areas benefit broad range of species

The research was carried out by using a new global biodiversity database (the PREDICTS database) which contains data for approximately over one percent of all known species and spans 48 countries and 101 ecoregions - the most comprehensive biodiversity sample of terrestrial protected areas to ever be examined.

Co-lead author of the study, Dr Claudia Gray, from the University of Sussex said: "Previously, regional or global studies of protected areas have mostly used information from satellite photos, to look at changes in forest cover. Instead, we used a particularly exciting new dataset, which brings together information collected on the ground by hundreds of scientists all over the world.

"We have been able to show for the first-time how protection effects thousands of species, including plants, mammals, birds and insects. This has provided us with important insights into these areas - which previous studies were not able to do."

From the study, scientists also discovered protection is most effective when human use of land for crops, pasture and plantations is minimised. The results suggest that better management across the existing protected area network could more than double its effectiveness.

Dr Jörn Scharlemann, from the University of Sussex, said: "Protected areas are widely considered essential for biodiversity conservation, but our results show for the first-time that they do actually benefit a wide range of species. Study: Protected areas benefit broad range of species

"Our results reinforce recent commitments by governments for increased support and recognition of the importance of protected areas worldwide.

"We cannot deny the global importance of these areas and we must ensure that governments across the world recognise their significance and work to improve their effectiveness.

"Protected areas do not currently benefit all species - but what we have shown in our study is they have the potential to help us conserve some of the most biodiverse areas on Earth - which is why they vitally need increased global support."

Prof Andy Purvis, one of the paper's authors from the Natural History Museum, said: "This study shows how important questions in conservation biology can be tackled by joining forces. Hundreds of scientists from dozens of countries have generously shared their hard-earned data with us. Each one of those data sets is like a piece of a jigsaw: the overall picture only becomes clear when you have all the pieces and can put them together."

Dr Samantha Hill from the UN Environment Programme's World Conservation Monitoring Centre, said: "Humanity faces difficult decisions as to how best to protect <a href="http://www.earth.com/video/green-plastics-are-not-always-biodegradable/">biodiversity</a> while providing for the needs of our ever-growing population. This study provides new understanding into the biodiversity found at the intersection of protected areas and human land-uses.

"This research relied upon the data collated in the World Database on Protected Areas (WDPA) - the most complete dataset detailing the world's terrestrial and marine protected areas. The <a href="https://en.wikipedia.org/wiki/NASA">WDPA</a> is a joint product of the United Nations Environment Programme and the International Union for Conservation of Nature (IUCN) and made publicly-available by the UNEP-World Conservation Monitoring Centre at <a href="http://www.protectedplanet.net/" target="_blank" rel="noopener noreferrer">http://www.protectedplanet.net</a>."
###
The Paper entitled, "Local biodiversity is higher inside than outside terrestrial protected areas worldwide" is published in Nature Communications at 10:00am GMT on Thursday 28th July 2016 and once published be found here <a href="http://nature.com/articles/doi:10.1038/NCOMMS12306" target="_blank" rel="noopener noreferrer">http://nature.com/articles/doi:10.1038/NCOMMS12306</a>

MEDIA RELATIONS

Communications and External Affairs | University of Sussex | Sussex House | Brighton BN1 9RH | United Kingdom

T +44 (0)1273 678888 | <a href="mailto:press@sussex.ac.uk">press@sussex.ac.uk</a>

<a href="http://www.sussex.ac.uk/newsandevents" target="_blank" rel="noopener noreferrer">http://www.sussex.ac.uk/newsandevents</a>

Notes to Editors:

The University of Sussex's School of Life Sciences is one of the largest academic schools at the University of Sussex. With 96 per cent of its research rated as world leading, internationally excellent or internationally recognised (REF 2014), it is among the leading research hubs for the biological sciences in the UK. The School is home to a number of prestigious research centres including the Genome Damage and Stability Centre (GDSC) and the Sussex Drug Discovery Centre, where academics work with industry to translate scientific advances into real-world benefits for patients. The School is one of the partners of the Sussex Sustainable Research Programme, a new strategic initiative between the University of Sussex and the Institute of Development Studies which aims to support the sustainability of life on Earth through rigorous interdisciplinary research which stimulates action and influences policy. <a href="http://www.sussex.ac.uk/ssrp/index" target="_blank" rel="noopener noreferrer">http://www.sussex.ac.uk/ssrp/index</a>

The Natural History Museum in London welcomes more than five million visitors a year and is also a world-leading science research centre. Through its unique collection and unrivalled expertise it is tackling the biggest challenges facing the world today. It helps enable food security, eradicate disease and manage resource scarcity. It is studying the diversity of life and the delicate balance of ecosystems to ensure the survival of our planet. For more information go to <a href="http://www.nhm.ac.uk/" target="_blank" rel="noopener noreferrer">http://www.nhm.ac.uk</a>

The UNEP-World Conservation Monitoring Centre in Cambridge is the specialist biodiversity assessment centre of the United Nations Environment Programme (UNEP), the world's foremost intergovernmental environmental organisation. The Centre has been in operation for over 30 years, combining scientific research with practical policy advice, and houses the World Database on Protected Areas. <a href="http://www.unep-wcmc.org/" target="_blank" rel="noopener noreferrer">http://www.unep-wcmc.org</a>

Additional research bodies involved in this research paper include: Imperial College London, Swansea University in the UK, and the Commonwealth Scientific and Industrial Research Organisation (CSIRO) in Australia.

This work was funded by the School of Life Sciences at the University of Sussex and the UK's Natural Environment Research Council (NERC). This is a contribution from the Imperial College Grand Challenges in Ecosystem and the Environment Initiative, and the Sussex Sustainability Research Programme.

</div>

Study: Protected areas benefit broad range of species

Study: Protected areas benefit broad range of species. The world's...

<div>Underneath the waves of Palikir Pass, one of the world's top surf breaks in the Pacific Ocean, lies a new safe zone which aims to ensure the survival of local fisheries and the species that are caught in Pohnpei, Micronesia.</div>
<div>

It's all thanks to a group of scientists from Australia and Micronesia who have found by measuring how far fish travel, habitats can be better protected.

Researchers targeted the island of Pohnpei as a case study to examine how effective their designated marine protected areas (MPAs) are for conservation and fisheries management.

"We asked local fishers to tell us the top ten species they wanted to protect and found the majority of MPAs in Pohnpei were too small to protect the fish they cared about the most," said Dr. Rebecca Weeks from the ARC Centre of Excellence for Coral Reef Studies at James Cook University.

While some fish spend their whole lives moving no more than a few hundred metres, others will travel hundreds of kilometres every day.

The fishers ranked favorite food fish - Groupers, Rabbitfish, Parrotfish, Surgeonfish, Snapper and Trevally - along with those with cultural and conservation importance (Humphead wrasse and Bumphead parrotfish) as the most important species.

"We then calculated the home range of each species - the area where a fish spends most of its time eating and sleeping.

"We know that if their entire home range is within an MPA the fish will be protected but if the MPA is too small then it is likely the fish will swim out of the safe zone and risk being caught.

"By focusing on particular species that the fisherman care about and using information on the ecology of those species, like how far they move on a day- to-day basis we were able to determine how large no-take zones actually needed to be."

"We then took that information to community workshops and involved local fishers in the conversation which has resulted in the creation of larger MPAs."

Since the study, Pohnpei has established its largest MPA called the Palikir Pass Marine Sanctuary. The location is better known to many as P-Pass, a world class surf break.

Pohnpei is committed to achieving international targets for biodiversity conservation through the Micronesia Challenge, and has already protected 30% of its marine and 25% of its terrestrial habitats. However, not all of the MPAs on the reefs surrounding Pohnpei are performing well, as many are too small.

"MPAs could be designed more effectively all over the world. You get conservation scientists and NGO's who say you need to make closures as large as possible but that doesn't really resonate with people," said Weeks.

"The larger the area set aside for no-take zones, the smaller the area for fishing. There is this trade-off between livelihoods, food security and conservation and people are less likely to follow the rules if they don't see how they will benefit from them.

"Because we focused the conversation on the fish they wanted to protect, it engaged more people.

"We anticipate that focusing on these species will mean better protection and an increase in their abundance which will ultimately benefit both conservation and local fisheries.
###
The study led by Dr. Rebecca Weeks was undertaken in conjunction with The Nature Conservancy and the Conservation Society of Pohnpei. The perspective appears this month in the Journal of Applied Ecology.

Paper

Published in the Journal of Applied Ecology.

<a href="http://onlinelibrary.wiley.com/doi/10.1111/1365-2664.12736/full" target="_blank" rel="noopener">http://onlinelibrary.wiley.com/doi/10.1111/1365-2664.12736/full</a>

&nbsp;

</div>

Conservation scientists protect fish at the island of Pohnpei

Underneath the waves of Palikir Pass, one of the world's...

<div>
<div class="img-wrapper">Even if people completely stopped converting tropical forests into farmland, the impacts of tropical deforestation would continue to be felt for many years to come. That's the conclusion of researchers reporting in the Cell Press journal Current <a href="http://www.earth.com/news/plants-biological-clock-crop-spraying/">Biology</a> on July 28 who have used historical rates and patterns of tropical deforestation around the globe to estimate the resulting carbon emissions and species losses over time. Impacts of tropical deforestation will be felt for many years to come</div>
The findings highlight the importance of accounting for the time lag between deforestation and its environmental impacts in meeting conservation goals. Also it Impacts of tropical deforestation will be felt for many years to come.

"We show that even if deforestation had completely halted in 2010, time lags ensured there would still be a carbon emissions debt equivalent to five to ten years of global deforestation and an extinction debt of more than 140 bird, mammal, and amphibian forest-specific species, which, if paid, would increase the number of 20th century extinctions in these groups by 120 percent," says Isabel Rosa (@isamdr86) of the Imperial College of <a href="https://www.bing.com/search?q=london&amp;form=EDGEAR&amp;qs=PF&amp;cvid=7910b0b171c146a784349d095e594c92&amp;cc=US&amp;setlang=en-US&amp;elv=AY3%21uAY7tbNNZGZ2yiGNjfNhS3t*LItEfHefM2goi1CZwr%21kWOqx1M8qR8u8l0TaB3SCMb6wEJx8rLW7DfosFATO13utXk7Gr8Md4f3zu3E9&amp;plvar=0&amp;PC=HCTS">London</a>. "Given the magnitude of these debts, commitments to reduce emissions and biodiversity loss are unlikely to be realized without specific actions that directly address this damaging environmental legacy."

It takes time after trees are cut down before the wood and other plant matter left at the site fully decay, releasing carbon into the atmosphere. The resulting loss of habitat also leads to species losses, but those effects also tend to occur gradually.

In the new study, Rosa and her colleagues used a spatially explicit land cover change model to reconstruct the annual rates and spatial patterns of tropical deforestation from 1950 to 2009 in the Amazon, Congo Basin, and Southeast Asia. Using those patterns, they estimated the resulting gross vegetation carbon emissions and species losses.

The findings show that current emissions and species extinctions are mostly tied to past actions. As a result, the researchers explain, changes in annual deforestation rates will initially have a smaller than expected effect on annual carbon emissions. For example, they write, a 30 percent reduction in deforestation rates as seen in the Brazilian Amazon between 2005 and 2010 only cut carbon emissions over the same time period by 10 percent.

The researchers also show that modern deforestation has left us with an estimated extinction debt of 144 vertebrate species found only in tropical forests. That's 20 percent more than the number of extinctions known to have occurred in vertebrate groups in more than a century.

"I expected an increase in both carbon emissions and species extinctions debts, but the magnitude of these debts was surprising," Rosa says.

The findings show that reaching national and global emissions targets will be even more challenging than anticipated.

"We need to do more if we want to avoid paying these debts, thus preventing further loss of species and carbon emissions," Rosa said. "We need to preserve existing habitats, but also restore forests that have been degraded. Allowing the forest to regrow on areas that have been deforested helps by creating 'new' suitable areas for species to survive in while allowing some of this excess carbon to be stored back in the new trees rather than emitted into the atmosphere."

Rosa says she'll continue to pursue the use of their models to support better policy and management decisions.
###
The authors were supported by the European Research Council.

Current Biology, Rosa et al.: "The Environmental Legacy of Modern Tropical Deforestation" <a href="http://www.cell.com/current-biology/fulltext/S0960-9822" target="_blank" rel="noopener noreferrer">http://www.cell.com/current-biology/fulltext/S0960-9822(16)30625-X</a>

Current Biology (<a href="https://twitter.com/currentbiology?lang=en" target="_blank" rel="noopener noreferrer">@CurrentBiology</a>), published by Cell Press, is a bimonthly journal that features papers across all areas of biology. Current Biology strives to foster communication across fields of biology, both by publishing important findings of general interest and through highly accessible front matter for non-specialists. Visit: <a href="http://www.cell.com/current-biology" target="_blank" rel="noopener noreferrer">http://www.cell.com/current-biology</a>. To receive Cell Press media alerts, contact <a href="mailto:press@cell.com">press@cell.com</a>.

</div>

Impacts of tropical deforestation will be felt for many years to come

Even if people completely stopped converting tropical forests into farmland,...

<div>
<div class="img-wrapper">Heat captured by dust boosts intensity of monsoons. Variations in the ability of sand particles kicked into the atmosphere from deserts in the Middle East to absorb heat can change the intensity of the Indian Summer Monsoon, according to new research from The University of <a href="https://en.wikipedia.org/wiki/Texas">Texas</a> at Austin.</div>
The research was published July 28 in Scientific Reports, an open access journal from the publishers of Nature.Heat captured by dust boosts intensity of monsoons

The Indian monsoon is a period of intense rainfall that more than a billion people rely on to bring rains to farmland. The results of the study could help improve monsoon prediction models, which usually use a constant value for sand particles' heat-absorbing ability. Because the absorbing ability varies greatly with region and time, assigning a constant heat-absorbing ability for the particles tends to underestimate the impact that absorbed heat can have on the monsoon system, the authors said.

The study was led by Qinjian Jin, a postdoctoral researcher at the Massachusetts Institute of Technology, who conducted the research while earning his Ph.D. at The University of Texas at Austin's Jackson School of Geosciences. He collaborated with Zong-Liang Yang, a professor in the Jackson School's Department of Geological Sciences, and Jiangfeng Wei, a research scientist in the department.

The deserts of the Middle East are a large source of "mineral dust," small particles of sand that are brought into the atmosphere by wind and thermals. Once in the atmosphere, the dust can heat parts of the atmosphere by absorbing energy from sunlight.

The researchers found that mineral dust that originates in the Middle East can strengthen the Indian Summer Monsoon by heating the atmosphere above the Iranian Plateau and the Arabian Sea. But the dust's ability to absorb heat affected how much the dust influenced the monsoon. Dust that absorbed heat more efficiently was linked with increases in monsoon rainfall.

"The heating ability of dust aerosols largely determines how the monsoon responds to dust," Jin said.

The researchers examined the impact of mineral dust on monsoon strength by creating seven high-resolution computer simulations that varied the heat absorption of the mineral dust.

The Indian Summer <a href="http://www.earth.com/news/sonoran-monsoon-blaming-climate-change/">Monsoon</a> accounts for up to 80 percent of the annual rainfall in the Indian subcontinent. Increasing the strength of the monsoon can lead to flooding that can cause massive losses in life and crops. Jin said that for climate models to accurately capture monsoon behavior, they must account for the variability in mineral dust's heat absorption.

"This heating is represented in very different ways in different climate models, and is one of the factors responsible for inconsistency of climate model results," Jin said. "This study addresses the necessity for developing a new method to represent dust heating in climate models."

While this study focused on mineral dust's heat-absorption abilities, Jin said he is planning future research on how the dust particles can influence climate by changing cloud formation and behavior.

"Dust particles have been shown to be efficient ice nuclei, which may influence the monsoon by changing clouds' properties," Jin said.

Future research also needs to consider other dust processes, such as the surface erodibility of different dust source regions and how dust enters into the atmosphere, both of which have been studied by Yang and his other collaborators.

"Ultimately, this integrated research will improve our understanding of complex dust-monsoon interactions," Yang said.
###
The study was funded by the King Abdullah University of Science and Technology and the Jackson School of Geosciences.

</div>

Heat captured by dust boosts intensity of monsoons

Heat captured by dust boosts intensity of monsoons. Variations in...

Lake Tahoe is warming 15 times faster than normal rate. A new study says the average surface temperature of <a href="https://en.wikipedia.org/wiki/Lake_Tahoe">Lake Tahoe</a> has risen faster over the last four years than any time on record - 15 times faster than the long-term warming rate over the past half century. Lake Tahoe is warming 15 times faster than normal rate
The annual report issued by the <a href="http://www.earth.com/news/people-migrated-north-america/">UC Davis</a> Tahoe Environmental Research Center says continued warm and dry conditions contributed to several record-breaking measurements at Tahoe in 2015.
Experts say the numbers raising concerns about the ecological impacts of climate change on the nation's second deepest lake.
The report says the temperature warmed nearly one-half of a degree from the previous year to a record 53.3 degrees Fahrenheit. Also the ecological climate impacts the change of the nation causing a concern for global warming. Also the continued climate change will also have a lot of change.
While last year's precipitation was near average, only 6.5 percent of it fell as snow, the lowest amount on record. Only 24 days had below-freezing air temperatures, also a record.
© 2016 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Learn more about our Privacy Policy and Terms of Use.

Lake Tahoe is warming 15 times faster than normal rate

Lake Tahoe is warming 15 times faster than normal rate....

<div>New research from the University of <a href="http://www.earth.com/image/forest-fires-british-columbia-canada/">British Columbia</a> suggests evolution is a driving mechanism behind plant migration, and that scientists may be underestimating how quickly species can move. Study: Evolution is driving plant migration.</div>
<div>

The study, published today in the journal Science, builds on previous research that has shown some plants and animals are moving farther north or to higher altitudes in an effort to escape rising global average temperatures due to climate change. Study: Evolution is driving plant migration

"We know from previous research that evolution might play a role in how fast a species can move across a region or continent," said Jennifer Williams, the study's lead author and an assistant professor in <a href="https://en.wikipedia.org/wiki/NASA">UBC's</a> department of geography. "But what our study suggests is that evolution is not only a factor in movement, but that it can, in fact, accelerate the spread, and can do so predictably."

For the study, researchers used a small flowering plant (Arabidopsis thaliana), a common model organism in plant biology, to test the role of evolution in plant migration. Individual plants with different traits were cultivated together to create two sets of populations, one in which evolution was acting and another in which evolution was stopped.

They found that, after six generations, evolving plant populations dispersed seeds and migrated 11 per cent farther than non-evolving populations in landscapes with favourable conditions. Meanwhile, in landscapes where conditions were more challenging for the plants to disperse seeds, the evolving plant populations spread 200 per cent farther.

The findings suggest that evolution accelerates the speed of migration, said Williams.

However, more research is needed to determine why the researchers saw a larger effect of evolution under the more challenging conditions, which in this case increased the speed of movement.

"We know, for example, that there are some species of butterflies and plants that are expanding their ranges with climate change and moving north or up in elevation," she said. "What our results suggest is that, with evolution, the species can move faster and faster because the traits that make them better at moving are becoming more common at the front of the invasion. In the case of our plants, in the evolving populations, their seeds can disperse a bit further."

Williams said the findings underscore the importance for scientists to account for evolutionary change when predicting how quickly native species will be able to move as the Earth's climate continues to warm.
###
The study was co-authored by Bruce Kendall of the University of California, Santa Barbara, and Jonathan Levine of the ETH Zurich.

</div>

Study: Evolution is driving plant migration

New research from the University of British Columbia suggests evolution...

<div>
<div class="img-wrapper">Phytoplankton can't live everywhere due to physical barriers in the oceans. Subtle and short-lived differences in ocean salinity or temperature function as physical barriers for phytoplankton, and result in a patchy distribution of the oceans' most important food resource. The new research from the Center for Macroecology, Evolution and Climate at the University of Copenhagen may help explain the large biodiversity in the sea.</div>
Phytoplankton are microscopic algae that live free-floating in the sea, transported around by ocean currents. The composition of phytoplankton communities affect other microscopic organisms, fish and even whales, as they constitute the base of the food web in the sea. Phytoplankton can't live everywhere due to physical barriers in the oceans

"The oceans are full of invisible barriers that occur when temperature or salinity changes. Our new research shows that even short-lived barriers of just a couple of days or weeks, are enough to influence phytoplankton communities. This provides us with new insight into how the high biodiversity of phytoplankton is maintained and how the food web might be affected", says lead author and Postdoc Erik Mousing from the Center for Macroecology, Evolution and Climate at University of Copenhagen.

In recent decades, researchers have increasingly understood how small organisms are separated by relatively permanent fronts in the sea caused, for example, by large ocean currents. However, this is the first time researchers demonstrate that short-lived changes in salinity or temperature also lead to changes in the composition of algae communities.

<img class="alignleft size-thumbnail wp-image-2406948" src="http://cff1.greenatom.earth/uploads/2016/08/01093150/phytoplankton-organisms_1big_stock-150x150.jpg" alt="phytoplankton-organisms_1big_stock" width="150" height="150" />While it is known that physical barriers on land, such as rivers and mountains, can lead to the development of new plant and animal species over time, the oceans have primarily been perceived as a homogeneous environment. Therefore, it has been difficult to explain the large biodiversity of small algae.

"Our results show that the distribution of phytoplankton is much patchier than previously assumed as a result of these commonly occurring weak fronts. Coupled with the short generation time of phytoplankton the local barriers caused by these fronts could help explain why phytoplankton diversity is so large. Thus, at least in terms of the overall mechanisms controlling biodiversity, the terrestrial and marine systems are not fundamentally different", says co-author and Professor Katherine Richardson, from the Center for Macroecology, Evolution and <a href="http://www.earth.com/news/climate-change-favors-some-arctic-insects-over-others/">Climate.</a>

In the study, which was published today in the Journal of Ecology, the researchers analyzed 30 samples of phytoplankton from 16 locations in the <a href="https://www.bing.com/search?q=north+atlantic&amp;cvid=1f6cacd026c34662aa477590cf2a7f14&amp;FORM=ANAB01&amp;PC=HCTS">North Atlantic</a>. They also measured temperature and salinity in different water depths. Based on the samples, the researchers were able to map out a front with different salinities on each side. The species composition of phytoplankton was significantly different on either side of the front.

"Although our results are based on samples in the North Atlantic, weak and short-lived fronts occur in oceans all over the world. Therefore, there is every reason to believe that the influence of these small scale fronts on phytoplankton is a common feature in the world's oceans", concludes Erik Mousing.

The study has been conducted in cooperation with the Danish ClimateLab, NASA and the University of Maine.


</div>
<div></div>

Phytoplankton can't live everywhere due to physical barriers in the oceans

Phytoplankton can't live everywhere due to physical barriers in the...

<div>
<div class="img-wrapper">Tropical Depression 06W appeared to be consolidating and coming together in infrared imagery from <a href="https://en.wikipedia.org/wiki/NASA">NASA's</a> Aqua satellite. The storm formed east of the Philippines in the Philippine Sea on July 29, 2016. NASA infrared imagery shows Tropical Depression 06W coming together</div>
The Philippine Atmospheric, Geophysical and Astronomical Services Administration known as PAGASA is issuing advisories on Tropical depression 6W (TD6W). PAGASA gave TD6W the local designation of "Carina." For the latest advisory from PAGASA on the movement of Carina, visit: <a href="http://www.pagasa.dost.gov.ph/index.php/tropical-cyclones/weather-bulletins" target="_blank" rel="noopener noreferrer">http://www.pagasa.dost.gov.ph/index.php/tropical-cyclones/weather-bulletins</a>.

The Atmospheric Infrared Sounder or AIRS instrument that flies aboard NASA's Aqua satellite analyzed TD6W in infrared light on July 29 at 04:47 UTC (12:47 a.m. EDT) gathering temperature data of the system's clouds. Although the storm appeared somewhat fragmented, strong thunderstorms had formed around the center of circulation, and in fragmented bands northeast of the center. The storm also appears somewhat elongated. NASA infrared imagery shows Tropical Depression 06W coming together

Cloud top temperatures of the strongest storms exceeded minus 63 degrees Fahrenheit (minus 53 degrees Celsius). Storms with temperatures that cold are high in the troposphere and NASA research has shown they have the ability to generate heavy rain.

At 1500 UTC (11 a.m. EDT) on July 29, TD6W was located approximately 394 nautical miles east-southeast of Manila, <a href="http://www.earth.com/news/non-human-nature-rights/">Philippines</a>. Maximum sustained winds were near 25 knots (28.7 mph/46.3 kph). TD6W has tracked northwestward at 5 knots (5.7 mph/9.2 kph).

AIRS data also showed the sea surface temperatures around TD6W were as warm as 30 Celsius (86 Fahrenheit), warm enough to allow further development. Tropical cyclones need sea surface temperatures of at least 26.6 degrees Celsius (80 degrees Fahrenheit) to maintain intensity. Warmer waters can help a storm intensify, if atmospheric conditions allow.

The Joint Typhoon Warning Center (JTWC) forecast calls for TD6W to continue to track northward then northwestward under the influence of a sub-tropical ridge (elongated area) of high pressure, located to the east. JTWC also expects the depression to strengthen into a tropical storm rapidly.

JTWC noted that the cyclone will begin to interact with the mountainous terrain in Luzon on July 29 and turn north into the South China Sea.


</div>
<div></div>

NASA infrared imagery shows Tropical Depression 06W coming together

Tropical Depression 06W appeared to be consolidating and coming together...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Nushagak Bay, a large estuary in southwest Alaska. Nushagak runs mainly north to south and exits in Bristol Bay, a large body of water in the Bering Sea.



"The bay is primarily fed by the Nushagak River, which begins in the Alaska Range and flows southwest approximately 450 km. The bay is also fed by several additional rivers including the Wood, Igushik, Snake and Weary rivers," says ESA.



"The dark colors of the Nushagak River are most likely due to tannins or lignins (chemical substances found in plants). Tannins and lignins from roots, leaves, seeds, bark and soil can leach into the water and give it a brown or even black colour. The sediments then flow southwards where it is mixed with the bluer waters of the bay."



Video/ Image Credit: ESA



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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Nushagak Bay in southwest Alaska

[sendtonews key="0ynNMYkMKa-2340414-12187" type="single"] Today’s Video of the Day from the...

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Today's Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> (ACS) reveals that proteins on flu viruses are actually flexible, tilting and waving in a “breath-like” motion. According to the experts, these proteins could be used to better defend against the flu.



"The main antigenic targets of influenza virus are two surface glycoproteins, hemagglutinin (HA) and neuraminidase (NA). Whereas the structural and dynamical properties of both glycoproteins have been studied previously, the understanding of their plasticity in the whole-virion context is fragmented," wrote the researchers.



To investigate, the team conducted detailed simulations of the influenza A H1N1 virion, or the swine flu. The experts concluded that the visualizations show many new vulnerable states of flu viruses, which could improve future vaccines and antiviral drugs.



Video/ Image Credit: American Chemical Society&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



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Flu viruses are more flexible than expected

[sendtonews key="G9bUoxcjr4-2511624-12187" type="single"] Today's Video of the Day from the...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Lake Trasimeno, which is located west of Perugia in central Italy. It is the fourth largest lake in the country. While Trasimeno’s water level varies, it has a maximum depth of approximately six meters.&nbsp;



"In this Copernicus Sentinel-2 image, captured on 6 August 2022, the lake’s emerald green colour is likely due to the presence of phytoplankton. Streaks in the water, particularly visible in the west, indicate the presence of soil and sediments which have been stirred up by winds. Dark colored waters in the southern part of the lake indicate a presence of submerged and floating macrophytes (aquatic plants) as well as algae," says ESA.



"Surrounded by hills on three sides, Trasimeno is subject to heavy storms created by winds, especially from the north and west. There are three islets in the lake: Maggiore, Minore and Polvese (the largest). The lake’s shores are sparsely inhabited with only two popular villages: Castiglione del Lago and Passignano sul Trasimeno."



"Italy is experiencing its worst drought in 70 years which has affected drinking water supplies, hydroelectric power and agricultural production. High temperatures, hot winds and lack of rainfall are the main causes of drought in the Umbrian region which saw Lake Trasimeno’s drop 1.3 m, reaching the limit of the hydrometric zero in July 2022."



Video/Image Credit: ESA&nbsp;



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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Lake Trasimeno in Central Italy

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Today's Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> describes a new self-powered nanosensor that can instantly detect mercury contamination with the tap of a finger.&nbsp;



The oxidized form of mercury can be harmful when it is ingested through contaminated water or food. This makes it necessary for experts to develop sensors that can quickly and accurately detect the presence of mercury.&nbsp;



Zong-Hong Lin and colleagues have now created a triboelectric nanosensor (TENS) that can detect mercury by simply by touching a sample. According to the researchers, their TENS could serve as the basis for similar devices to safely and remotely monitor other pollutants.



Video Credit: American Chemical Society&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



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Detecting mercury contamination with the tap of a finger

[sendtonews key="LvS8v8bp9z-2564889-12187" type="single"] Today's Video of the Day from the...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Kainji Lake, a reservoir on the Niger River.



In 1968, Kainji Lake was created by the construction of the Kainji Dam. The Niger River, the third longest in Africa, enters the lake in the north.&nbsp;



According to <a href="https://www.earth.com/news/rivers-in-the-american-west-are-a-lifesaving-resource-for-birds/">ESA</a>, the creation of the lake submerged Foge Island and the town of Bussa and permanently flooded other riverine settlements, leaving around 50,000 people displaced.&nbsp;



Large parts of Foge Island are temporarily exposed during low water tides, and the land is often used by migrating fishermen. Kainji Dam is a dam across the Niger River in Niger State of Central Nigeria. 



Wild mammals occur at relatively low densities due to illegal hunting. Lake Kainji has suffered a dramatic decline as a fishery due to the high numbers of artisanal and subsistence fisherfolk using the lake. It has been suggested that a period of closure, together with controlled fishing rights may help improve fish stocks.



Kainji Lake National Park is the oldest of its kind in Nigeria. The park contains three distinct areas: a part of the Kainji Lake, the Borgu Game Reserve to the west of the lake, and the Zugurma Game Reserve to the southeast. The park is home to around 65 mammal species, 350 bird species, and 30 species of reptiles and amphibians. 



Video/ Image Credit: European Space Agency&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Kainji Lake in north central Nigeria

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Today’s Video of the Day from <a href="https://www.igb.illinois.edu/">Carl R. Woese Institute for Genomic Biology</a> reveals how scientists can modify common crops like soybean, rice, and wheat to protect them from heat stress.



“We need to double crop production by 2050 to feed a growing global population, and not only are we not on track to do that, but climate change is further complicating things,” said Amanda Cavanagh, a lecturer at the University of Essex. 



The study is part of Realizing Increased Photosynthetic Efficiency (RIPE), an international research project that aims to develop food crops that turn the sun’s energy into food more efficiently.



“Using an engineering approach we designed multiple alternative metabolic pathways to photorespiration. Testing them in the field showed increases in productivity which led Amanda to significantly move the project forward by showing our engineered plants can withstand pretty extreme temperature stress,” said study co-author and RIPE researcher Paul South.&nbsp;



“As the climate changes and temperature stresses increase the pressure on our global food supply, farmers will need every tool available including engineering approaches like the synthetic biology used here to maintain safe and productive harvests.”



The experts tested plants modified to have more efficient photorespiration to see if they were better adapted to warmer temperatures.&nbsp;



The team found that the engineered plants produced 26 percent more biomass than the wild-type plants exposed to the same temperatures, and had 15 percent less yield loss under the higher temperatures.



Video Credit: Amanda Nguyen/University of Illinois



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Designing crops that can beat the heat

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Today’s Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> explores the ability of salt to transform the way that foods and beverages taste. Salt is known to cover up undesirable flavors, such as bitterness in coffee or beer, but how exactly does sodium chloride change the taste of other compounds?



One previous study showed that, not only does salt suppress bitterness, but also enhances sweetness and sourness. Another study revealed that bitterness reduction by salt seems to be happening at the tongue receptor level as well as in the brain.&nbsp;



While it is known that salt taste is mediated by the presence of sodium channels in the form of taste buds, experts believe that there is also an unknown receptor responsible for how we taste salt that has not yet been identified.&nbsp;



Video Credit: ACS Reactions



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



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How does salt makes things taste better?

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Santiago, the capital city of Chile. The city is located in the center of the Santiago Metropolitan Region, which has a population of about eight million people.&nbsp;



'The weather of Santiago resembles the Mediterranean climate with dry and warm summers with temperatures reaching up to 35°C (from October to March) and cool and humid winters that can drop to 0°C (from April to September)."



"The city lies in the centre of the country’s central valley around 80 km from the Pacific Ocean to the west and borders Argentina to the east. A tiny part of Argentina is visible in the top-right corner of the image where the mountain crest of the Andes Mountains acts as a divider between the two countries," says ESA.



Video/ Image Credit: ESA



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



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Santiago, Chile in South America

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Spiral,Galaxy,,Illustration,Of,Milky,Way

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Astronomers at <a href="https://www.jhu.edu/">Johns Hopkins University</a> have created an interactive map of the universe, including the actual position and real colors of 200,000 galaxies. The map allows the public to access data that was previously only available to scientists.



The map was developed using data collected by the Sloan Digital Sky Survey. For over two decades, a telescope in New Mexico was aimed at slightly different locations to capture the night sky.&nbsp;



"Growing up I was very inspired by astronomy pictures, stars, nebulae and galaxies, and now it's our time to create a new type of picture to inspire people," said map creator Brice Ménard, a professor at Johns Hopkins. "Astrophysicists around the world have been analyzing this data for years, leading to thousands of scientific papers and discoveries. But nobody took the time to create a map that is beautiful, scientifically accurate, and accessible to people who are not scientists. Our goal here is to show everybody what the universe really looks like."



"In this map, we are just a speck at the very bottom, just one pixel. And when I say we, I mean our galaxy, the Milky Way which has billions of stars and planets. We are used to seeing astronomical pictures showing one galaxy here, one galaxy there or perhaps a group of galaxies. But what this map shows is a very, very different scale."



"From this speck at the bottom, we are able to map out galaxies across the entire universe, and that says something about the power of science."



The <a href="https://mapoftheuniverse.net/">interactive map</a> is available online, where it can be downloaded for free.



Video Credit: Johns Hopkins&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Interactive map of the universe includes 200,000 galaxies

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Today's Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes the first comprehensive estimate of carbon density in the Saharan, Sahel, and Sudanian zones of Africa. In an effort to measure the amount of carbon stored across these drylands, a team of scientists used high-resolution satellite images and artificial intelligence to map nearly 10 billion individual trees. 



"The high spatial resolution (50 cm) combined with AI and field measurements used in this study is key to improving tree inventories in drylands," said Pierre Hiernaux, a French researcher working for NASA. "The ever-increasing availability of very high-resolution satellite imagery will make it possible to assess carbon pools and their dynamics at the individual tree level on a global scale."



"This study is exceptional because it is pioneering a type of approach that will revolutionize the monitoring of trees and forests on a global scale: in the short term, it will be possible to map the world's trees from the centre of the Amazon to our schoolyards," said <a href="https://www.inrae.fr/en">INRAE</a> researcher Jean-Pierre Wigneron.



"Many fields of application will become much more efficient and accurate, such as tracking carbon stocks, biodiversity, monitoring logging and protection against illegal forest degradation, in near real time.”



Video Credit: NASA Goddard&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Remote sensing will revolutionize the way we monitor trees

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Today's Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Dublin, the capital and largest city of Ireland. Beyond its pub culture, Dublin is known as a modern culinary destination and a UNESCO City of Literature.



"Dublin is located near the midpoint of Ireland’s east coast in the province of Leinster. The city, which covers an area of around 115 square kilometers, is bordered by the Dublin Mountains, a low mountain range to the south, and is surrounded by flat farmland to the north and west," says ESA.



"The city straddles the River Liffey, which rises in the Wicklow Mountains and flows around 80 kilometers eastwards through the city of Dublin, in which it is canalised and bordered with quays. It then empties into Dublin Bay, an arm of the Irish Sea."



Dublin has an abundance of green spaces, including one of the largest enclosed public parks in any European capital city. Phoenix Park, which was originally formed as a royal hunting park in the 1660s, includes 707 hectares of green space.



Video Credit: ESA&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

The city of Dublin on Ireland's east coast

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Today's Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features the province of Zaragoza in northeast Spain. The image was captured by the Copernicus Sentinel-2 mission.



"Together with the provinces of Huesca and Teruel, Zaragoza formed the old kingdom of Aragon. Its capital, also called Zaragoza (not visible in this image) is home to around half of Aragon’s population," says ESA.



"The Ebro River can be seen winding its way through the province from west to east in this image. Between its source in the Cantabrian Mountains in the northwest and its delta on the Mediterranean coast, the Ebro River is fed by more than 200 tributaries as it flows 910 km across much of northern Spain."



Since rainfall is very scarce in this region, irrigation in the Ebro basin is critically important. In the valleys surrounding the Ebro River, many fields are used for growing crops such as corn, wheat, and barley.



Video/ Image Credit: ESA



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

The province of Zaragoza in northeast Spain

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Today's Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> features a visual dataset of.methane emissions from wetlands across the globe. Atmospheric methane levels have reached record highs in recent years, and wetlands are a major source of these emissions.&nbsp;



"Methane is an important greenhouse gas that contributes substantially to global warming. On a molecule by molecule basis, methane is much more efficient at trapping heat than carbon dioxide, the main driver of warming," says NASA.



"Though human activities, including agriculture, oil and natural gas production and use, and waste disposal, collectively contribute the majority of methane to the atmosphere, about a third of total methane emissions comes from wetlands."&nbsp;



According to NASA, understanding methane emissions from wetlands and other natural sources is critically important for scientists and policymakers who are working to combat climate change by reducing emissions from human activities.



Video Credit: NASA Goddard



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Wetlands are a major source of methane emissions

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Today’s Video of the Day from <a href="https://earthobservatory.nasa.gov/">NASA Earth Observatory</a> reveals the evolution of the Columbia Glacier in southeastern Alaska. Columbia is among the fastest shrinking glaciers in the world, and the video documents its rapid retreat over the years.&nbsp;



Columbia Glacier is a large, multi-branched calving glacier that flows out of the Chugach Mountains to the Prince William Sound.&nbsp;



According to USGS, Columbia had a long history of stability prior to 1980, with a length 41 miles, and small, short-lived advances or retreats.



In the years since 1980, however, satellite images have captured Columbia’s alarming retreat. By using false-color images, scientists can distinguish between snow and ice, open water, vegetation, and rocky debris on the glacier’s surface.



The series of false-color images featured in today's video were acquired over the span of 35 years. You can see that by 2021, the glacier’s main branch had retreated about 15 miles from its initial position.



The Columbia Glacier has also lost more than 50 percent of its volume, mostly due to calving. <a href="https://www.earth.com/video/nasa-reveals-3d-visual-of-an-atmospheric-river/">NASA</a> reports that while climate change likely started the retreat, mechanical processes kept the disintegration going.



The NASA images are provided by Jesse Allen, Robert Simmon, Joshua Stevens, and Lauren Dauphin using data from Landsat satellites, from the U.S. Geological Survey, and data from MODIS on NASA’s Terra satellite. The structure of Columbia’s moraine played a large role in the stability of the glacier before 1980. 



Like other tidewater glaciers, the Columbia built up a moraine over time, and the mixture of ice and rock functioned like a dam keeping out the sea. It was supported on one end by the shoreline and by the underwater terminal moraine at the other.



Video Credit: NASA Earth Observatory/&nbsp; NASA’s Scientific Visualization Studio



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

The rapid retreat of the Columbia Glacier

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features the Pyrenees Mountains, which form a natural boundary between France and Spain in southwest Europe.



The mountain range is 430 kilometers in length. It stretches from the Mediterranean Sea on the east to the Atlantic Ocean on the west.



At an elevation of 3404 meters, Pico de Aneto is the highest mountain peak in the Pyrenees, and the third-highest peak in Spain. Pico de Aneto is located in the Posets-Maladeta Natural Park, which spans more than 82,000 acres.&nbsp;



"Geological studies have revealed that the Pyrenees Mountains have been around for longer than the Alps, with their sediments first deposited in coastal basins during the Paleozoic and Mesozoic eras," reports ESA.



"The entire mountain range formed due to the upwelling of large sedimentary rocks by the collision of the Iberian and the Eurasian plate around 100 to 150 million years ago, followed by intense erosion from ice and water."



The western Pyrenees receive more precipitation due to moisture blowing in from the Atlantic Ocean. The mountain range contains many lakes, several small glaciers, and some of the highest waterfalls in Europe.



Video &amp; Image Credit: ESA



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

The Pyrenees Mountains in southwest Europe

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Today’s Video of the Day from <a href="https://www.stowers.org/">Stowers Institute for Medical Research</a> describes why experts are studying zebrafish to gain a better understanding of how the immune system responds to injury. Zebrafish have the ability to repair and regenerate organs.



“Organ regeneration offers an exciting opportunity for studying the immune system and to inquire why some species can regenerate organs like the heart or missing limbs while others like humans cannot,” explained Dr. Tatjana Piotrowski.



Zebrafish sensory organ hair cells are an ideal system to investigate the pathways and cell types involved in regeneration since they are easily destroyed with antibiotics and begin regenerating within five hours. This enabled the researchers to identify the exact timing and genetic programs for each anti-inflammatory macrophage activation state.&nbsp;



“Our hypothesis is that human macrophages do not receive the proper chemical activation 'cocktail' to instruct pro-regenerative processes,” said Dr. Nicolas Denans. “Identifying the molecular recipe of macrophage activation in zebrafish may one day enable us to design regenerative immunotherapies in humans.”&nbsp;&nbsp;&nbsp;



“The new evidence is a valuable resource for comparative studies on the genetic programs involved in macrophage-mediated repair and regeneration. In other words, different types of injuries may induce different kinds of inflammatory responses. We want to decipher whether this 'language' is universal or if there are a variety of dialects."



Video Credit: Stowers Institute for Medical Research&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

How the immune system responds to injury

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Today's Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes how record-breaking heat expressed itself around the world in 2022.



Scientists have determined that 2022 was the 5th warmest year since 1880. Furthermore, the last nine consecutive years have been the warmest on record.



From devastating floods and wildfires to natural disasters like Hurricane Ian, 2022 showed us yet again how a warming climate affects people across the globe.&nbsp;



"As we look back at 20:22 and years past, we see that each year we better understand the challenges we face and how important it is to meet them," says NASA.



Video/ Image Credit: NASA Goddard



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

2022 illustrated the consequences of a warming climate

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Earth,Like,Exoplanet,3d,Render

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Today's Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes two exoplanets that are orbiting a star 218 light-years away. A team of researchers led by the University of Montreal has found evidence that these planets are "water worlds."



The experts used data from NASA’s Hubble and Spitzer Space Telescopes. They discovered that exoplanets Kepler-138 c and Kepler-138 could be composed largely of water.



"We previously thought that planets that were a bit larger than Earth were big balls of metal and rock, like scaled-up versions of Earth, and that's why we called them super-Earths," explained study co-author Björn Benneke.&nbsp;



"However, we have now shown that these two planets, Kepler-138 c and d, are quite different in nature and that a big fraction of their entire volume is likely composed of water. It is the best evidence yet for water worlds, a type of planet that was theorized by astronomers to exist for a long time."



Video Credit: NASA Goddard



Image Credit: NASA, ESA, and Leah Hustak (STScI)



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Two distant planets may be "water worlds"

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Satellites reveal how Earth's systems are interconnected Today’s Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes Earth’s interconnected systems, and how this network is affected by rising temperatures.&nbsp;



During 2020, average global temperatures matched the hottest year on record. The hurricane season was also record-breaking, with many of the storms intensifying at extraordinary speeds. Hot water in the ocean is fuel for hurricanes. The satellite data shows that it's all one interconnected system showing how Satellites reveal how Earth's systems are interconnected.



According to NASA, dust swept up from Northern Africa plays a major role in the formation of hurricanes, and is also a key source of fertilization in the Amazon rainforest. As a result of<a href="https://www.earth.com/news/seagrass-wasting-disease-is-fueled-by-climate-change/"> climate</a> change, dust plumes are expected to decline, which will have an effect on vegetation far away.&nbsp;



Images from Earth-observing satellites show how the world’s plant life is affected by natural disasters, fires, and deforestation. Satellites also reveal how widespread changes in vegetation impact waterways,&nbsp; the climate, air quality. Satellites communicate by using radio waves to send signals to the antennas on the Earth. "Earth From Space" is a groundbreaking two-hour special that reveals a spectacular new space-based vision of our planet. 



Video Credit: NASA Goddard&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Satellites reveal how Earth's systems are interconnected

[sendtonews key="JbW4VsY53O-1632195-12187" type="single"] Satellites reveal how Earth's systems are interconnected...

Today’s Video of the Day from the <a href="https://welcome.miami.edu/">University of Miami</a> Rosenstiel School of Marine and Atmospheric Science explores how changes in water temperatures have affected tiger shark habitats and movements in the North Atlantic Ocean. The study reveals that rising temperatures have caused the sharks to shift toward the poles over the past 40 years.



“Tiger shark annual migrations have expanded poleward, paralleling rising water temperatures,” explained study lead author Neil Hammerschlag. “These results have consequences for tiger shark conservation, since shifts in their movements outside of marine protected areas may leave them more vulnerable to commercial fishing.”



The researchers analyzed nine years of tracking data from satellite-tagged tiger sharks, combined with four decades of conventional tag and recapture data provided by National Oceanic and Atmospheric Administration (NOAA) Cooperative Shark Tagging Program.



The experts found that during the last decade of record heat, for every one-degree Celsius increase in water temperatures, tiger sharks migrated further poleward by over 400 kilometers. They also migrated two weeks earlier than usual to waters off the northeastern coast of the United States.



“Given their role as apex predators, these changes to tiger shark movements may alter predator-prey interactions, leading to ecological imbalances, and more frequent encounters with humans,” concluded Professor Hammerschlag.



Video Credit: University of Miami Rosenstiel School of Marine and Atmospheric Science



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Tiger sharks are shifting poleward as temperatures rise

Today’s Video of the Day from the University of Miami...