Did you ever realize that food waste could be significantly reduced by using the freezer more effectively? It turns out that your freezer serves a greater purpose than just storing the overflow of holiday leftovers.



According to a recent study, your freezer may have a larger environmental impact than you ever imagined by reducing food waste.



<h2 class="wp-block-heading" id="h-freezing-food-to-reduce-household-waste">Freezing food to reduce household waste</h2>



The study, led by a team of researchers at The Ohio State University, reveals that discarded frozen items constitute a mere six percent of the food wasted in <a href="https://www.earth.com/news/family-wastes-food/" target="_blank" rel="noreferrer noopener">American households</a>.



This makes a compelling case to stock up freezers as a preventive measure against hasty food discards.



Despite the vexing prevalence of high food waste, the researchers identified a glimmer of hope. They observed a direct, positive correlation between freezing food and a decrease in discarded edibles.



"We found that households with home freezing behaviors are more likely to have less food waste than other households,” said Dr. Lei Xu, the lead author of the study.



<h2 class="wp-block-heading" id="h-focus-of-the-study">Focus of the study</h2>



For the investigation, the experts added questions to the summer 2022 wave of the US Household Food Waste Tracking Survey. 



"The novel survey data provide important baseline information and household behaviors, such as food waste, home freezing of fresh food and the purchase of frozen foods," noted the researchers.



The team analyzed the association among these behaviors from more than 1,000&nbsp;US households.



<h2 class="wp-block-heading" id="h-the-environmental-impact-of-wasted-food">The environmental impact of wasted food</h2>



Dr. Xu noted that food waste is not just an economic loss – it also causes environmental damage because more than 90% of wasted food goes to the <a href="https://www.earth.com/news/food-waste-bans-are-ineffective-in-reducing-landfill-waste/" target="_blank" rel="noreferrer noopener">landfill</a>, and this can produce greenhouse gas emissions. 



"The findings suggest that in the future, if we can encourage households to have home freezing behaviors, this small change in <a href="https://www.earth.com/news/better-refrigeration-could-significantly-reduce-global-food-waste/" target="_blank" rel="noreferrer noopener">food storage habits</a> can have a large environmental impact."



Professor Brian Roe, another integral part of the research team, has been studying household food waste for years. 



This study is the first to identify the role of frozen food in reducing unnecessary food disposal.



While worrying estimates suggest that about 30% of food in the U.S. is wasted, Professor Roe's research indicates a rising trend in consumer food waste.



This calls for effective campaigns to educate households about mindful purchasing and maximizing the utility of the <a href="https://www.earth.com/news/nutrition-labels-help-people-buy-healthier-products/" target="_blank" rel="noreferrer noopener">food they buy</a>.



<h2 class="wp-block-heading" id="h-home-freezers-and-food-waste">Home freezers and food waste</h2>



Data compiled from the survey revealed some interesting facts. A staggering 85% of American households buy <a href="https://www.earth.com/news/u-s-foods-have-the-second-highest-salt-content-in-the-world/" target="_blank" rel="noreferrer noopener">frozen foods</a>, and 55% do so to reduce waste.



The researchers also identified a link between frequent home freezing and significantly less total food waste.



Households that reported frequent freezing habits most likely comprised adults aged 45 years and above and consisted of at least three or more individuals.



A surprising revelation from the study was that around 30% more discarded frozen food came from the refrigerator than from the freezer. This highlights the importance of proper freezing practices and ensuring that food is rotated and consumed before it expires.



The research points to a lack of understanding of proper food storage techniques, which in turn, suggests a need for clearer food storage instructions on packaging to support waste reduction.



<h2 class="wp-block-heading" id="h-freezing-food-for-a-sustainable-future">Freezing food for a sustainable future</h2>



Beyond the economic and environmental benefits, the study also brought to light a potential solution to the societal problem of <a href="https://www.earth.com/news/forests-help-reduce-food-insecurity-in-rural-communities/" target="_blank" rel="noreferrer noopener">food insecurity</a> faced by 10% of U.S. households. 



“Half of consumers buy frozen food to reduce waste. What about the other half?” said Dr. Xu.



"We want to increase social awareness of how to save food, and explain how people use frozen food and home freezing techniques to save food. And freezing is one of the most accessible techniques because essentially all households have a refrigerator and freezer."



Adopting mindful freezing practices not only minimizes food waste but also preserves surplus food for future use, offering a safeguard against unexpected shortages. Before tossing out that half-eaten dish or leftover meal, consider your freezer. 



By using the freezer instead of discarding, you’re not just reducing food waste - you’re making a positive impact on the environment. The solution, it seems, is as close as your kitchen.



The full study was published in the journal <a href="https://www.emerald.com/insight/content/doi/10.1108/bfj-02-2024-0147/full/html" target="_blank" rel="noreferrer noopener">British Food Journal</a>.



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Your freezer can play a key role in reducing food waste

Did you ever realize that food waste could be significantly reduced by using the freezer more effectively? It turns out that your freezer serves a greater purpose than just storing the overflow of holiday leftovers. According to a recent study, your freezer may have a larger environmental impact than you ever imagined by reducing food waste. Freezing food to reduce household waste The study, led by a team of researchers at The Ohio State University, reveals that discarded frozen items constitute a mere six percent of the...

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NASA sees Hurricane Darby's clouded eye. The Suomi NPP satellite passed over Hurricane Darby and saw clouds in its eye as the storm continued tracking west in the Eastern Pacific Ocean.

On July 14 at 21:05 UTC (5:05 p.m. EDT the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument aboard the <a href="https://en.wikipedia.org/wiki/NASA">NASA</a>-NOAA-DOD Suomi NPP satellite captured a visible light image of Hurricane Darby in the Eastern Pacific Ocean. The VIIRS image revealed an eye with bands of powerful thunderstorms wrapping into the low level center of circulation.NASA sees Hurricane Darby's clouded eye

Forecaster Beven at the National Hurricane Center in <a href="http://www.earth.com/news/bromeliads-blame-zika-virus-miami/">Miami</a>, Florida noted that Darby has changed little in organization during the early morning hours on July 14, with satellite imagery showing a ragged 25 nautical mile-wide eye embedded in the central dense overcast. Central dense overcast is the large central area of thunderstorms surrounding its circulation center, caused by the formation of its eye wall. It can be round, angular, oval, or irregular in shape. Sometimes finding the center of circulation can be difficult and in those cases, forecasters use microwave imagery.

VIIRS collects visible and infrared imagery and global observations of land, atmosphere, cryosphere and oceans.

At 5 a.m. EDT (0900 UTC) on July 14 the center of Hurricane Darby was located near latitude 16.1 North, longitude 120.0 West. That puts Darby's center about 805 miles (1,300 km) southwest of the southern tip of Baja California, Mexico.

The National Hurricane Center (NHC) said that maximum sustained winds are near 90 mph (150 kph) with higher gusts. Some strengthening is possible today, with weakening expected tonight and Saturday. Darby is moving toward the west near 12 mph (19 kph) and the NHC expects a turn toward the west-northwest later today and this motion should continue through Saturday. The estimated minimum central pressure is 982 millibars.

The NHC noted that some strengthening is possible today, July 14 while the center of Darby remains over relatively warm water. After that, the forecast track takes the cyclone over decreasing sea surface temperatures through 72 to 96 hours, possibly as cold as 24 degrees Celsius (75.2 degrees Fahrenheit). Because Tropical cyclones need sea surface temperatures of at last 26.6 degrees Celsius (80 degrees Fahrenheit) to maintain intensity, Darby is expected to weaken after today.


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NASA sees Hurricane Darby's clouded eye

NASA sees Hurricane Darby's clouded eye. The Suomi NPP satellite...

Oil giant BP PLC has put a final price tag on what its catastrophic Gulf of <a href="http://www.earth.com/image/samalayuca-sand-dunes/">Mexico</a> oil spill cost the company, and it's a hefty sum: $61.6 billion.
The company issued the estimate Thursday, the first time it has put a total cost on the catastrophe.
BP said it expects to spend a total of $44 billion after tax deductions are factored in. The new estimate included $5.2 billion in new pre-tax costs. Als the BP: Gulf of Mexico oil spill cost $61.6 billion causing a mass problem.
In 2010, one of the company's deep-sea wells blew out off the coast of Louisiana, leading to the sinking of the Deepwater Horizon drilling rig. Eleven rig workers were killed in the explosions and millions of gallons of oil spewed into the Gulf for 87 days.
BP said the cost estimate included all "remaining material liabilities."
The company has settled the majority of the claims filed against it by companies, local, state and federal governments and individuals, such as scores of fishermen.
It said its new pre-tax $5.2 billion cost estimate covers "all outstanding business and economic loss claims" stemming from litigation filed by individuals and companies.
In April, a federal judge approved a $20 billion settlement over economic and environmental damage between BP and state and federal governments, one of the largest corporate penalties in U.S. history.
"Importantly, we have a clear plan for managing these costs and it provides our investors with certainty going forward," Brian Gilvary, BP's chief financial officer, said in a news release.
The cost estimate was not far from what was expected, analysts said.
"It's important to put a figure on it and move on," said Eric Smith with the Energy Institute at Tulane University in <a href="https://en.wikipedia.org/wiki/New_Orleans">New Orleans.</a> "They are trying to put a cap on it and reassure that there is an end to this and that they are now confident enough to say what the end is."
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BP: Gulf of Mexico oil spill cost $61.6 billion

Oil giant BP PLC has put a final price tag...

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Satellite spots remnants of Ex-Tropical Cyclone Celia. Tropical Cyclone Celia weakened to a remnant low pressure area. NOAA's GOES-West satellite provided an infrared look at the clouds associated with the low.

GOES-West captured an infrared image of Celia's remnant clouds at 1500 UTC (11 a.m. EDT). The image showed an open circulation with the bulk of clouds to the northeast of the low-level center. NOAA manages the GOES series of satellites, and the <a href="https://en.wikipedia.org/wiki/NASA">NASA</a>/NOAA GOES Project at NASA's Goddard Space Flight Center in Greenbelt, Maryland uses the data to create images and animations.

OAA's Central Pacific Hurricane Center said that a surface low, the remnant of ex-Tropical Cyclone Celia, was centered about 300 miles northeast of Honolulu on July 18 at 1:50 a.m. HST (7:50 a.m. EDT). The remnant low pressure area was moving to the west at 10 mph. Satellite spots remnants of Ex-Tropical Cyclone Celia

Atmospheric conditions are not conducive for tropical<a href="http://www.earth.com/image/tropical-cyclone-hikaa-reaches-the-arabian-sea/"> cyclone</a> redevelopment. The chance for development is near zero over the next two days. Although the tropical storm has developed a long the way it has caused massive amounts of damage and surrounding areas. Also the Central Pacific is known to have a lot of strong storms causing disasters and nature changing.


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Satellite spots remnants of Ex-Tropical Cyclone Celia

Satellite spots remnants of Ex-Tropical Cyclone Celia. Tropical Cyclone Celia...

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Realistic evolution of global mean surface temperature A research team including a Scripps Institution of Oceanography at the University of California San Diego climate scientist simulated in a computer model, for the first time, the realistic evolution of global mean surface temperature since 1900.

In doing so, the researchers also created a new method by which researchers can measure and monitor the pace of anthropogenic global warming, finding that the contribution of human activities to warming in the surface waters of the <a href="https://www.bing.com/search?q=pacific+ocean&amp;form=EDGEAR&amp;qs=PF&amp;cvid=712703b34dec4d33aa0168b885bb0baf&amp;cc=US&amp;setlang=en-US&amp;elv=AY3%21uAY7tbNNZGZ2yiGNjfNcI5dP9v9G08gsHOyyYrAt1rrvN86nJ3Ajl2fTDy0S0ACqGtJw4hGjXMXfJPE%21bHsOVEJA38YYauOBT*golxS7&amp;plvar=0&amp;PC=HCTS">Pacific Ocean</a> can be distinguished from natural variability.

Former Scripps researcher Yu Kosaka, now at the University of Tokyo, and Shang-Ping Xie, the Roger Revelle Chair in Environmental Science at Scripps, created the simulation by forcing sea surface temperature over the tropical Pacific to follow the observed variability.

"The climate system includes naturally occurring cycles that complicate the measurement of global warming due to the anthropogenic increase in atmospheric greenhouse gases," said Xie. "We can isolate the anthropogenic warming by removing the internally generated natural variability."

Climate policymakers have sought to limit the rise of global temperatures to 2° Celsius higher than pre-industrial levels. That figure is considered a threshold beyond which society and natural systems are virtually assured of experiencing significant and dangerous instability. Scientists have estimated that the planet is already roughly 1° C warmer at the surface than before the Industrial Revolution.

The 2° C target was reaffirmed during the 2015 Conference of the Parties, known as COP21, that was held in Paris in December. Kosaka and Xie's research could provide an easily generated and more accurate means to measure society's success in keeping temperatures below that threshold.

The research is further confirmation of the primary importance of the Pacific in controlling global-scale climate that researchers have come to understand in recent decades. Kosaka and Xie plotted the rise of global mean temperatures over the past 120 years. The rise of temperatures ascends in a staircase fashion with the steps becoming larger over the past 50 years.

When Kosaka and Xie removed as a variable the natural warming and cooling of the Pacific Ocean, the rise of <a href="http://www.earth.com/news/ships-must-urgently-cut-co2-emissions-to-meet-global-climate-goals/">global</a> mean surface temperature became a more linear increase, one that began to accelerate more sharply in the 1960s. It had been natural Pacific decadal variations that temporarily slowed down or speeded up the warming trend, leading to the staircase pattern.

For example, global mean surface temperature has not changed much for 1998-2014, a time period known as the hiatus that has been tied to naturally occurring tropical Pacific cooling. Raw data show a warming of 0.9° C for the recent five-year period of 2010-2014 relative to 1900 while Kosaka and Xie's calculation yields a much higher anthropogenic warming of 1.2° C after correcting for the natural variability effect.

"Most of the difference between the raw data and new estimates is found during the recent 18 years since 1998," said Xie. "Because of the hiatus, the raw data underestimate the greenhouse warming."

Kosaka and Xie suggest that though Pacific Ocean trends are an essential variable control on global temperature rise, the accuracy of their warming estimate will be improved in the future as other climate modes are added as variables. An international initiative involving more than a dozen climate models is being planned to improve the estimates included in upcoming assessments by the Intergovernmental Panel on Climate Change (IPCC).
###
The paper, "The tropical Pacific as a key pacemaker of the variable rates of global warming," appears in the journal Nature Geoscience.

The National Science Foundation and NOAA supported Xie's contribution to the research. The Japanese Ministry of Education, Culture, Sports, Science and Technology supported Kosaka's.

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Realistic evolution of global mean surface temperature

Realistic evolution of global mean surface temperature A research team...

Florida algae outbreak is a man-made affliction The enormous algae outbreak that has coated swaths of Florida's St. Lucie River with guacamole-like sludge is a man-made affliction, arising from political and economic decisions made over the past 140 years.
Chasing dollars, Florida land developers and their government allies broke up nature's flow that used rivers, Lake Okeechobee and the Everglades to move water south from central Florida to the Florida Bay at the peninsula's tip. That spurred Florida's economic growth, but it came with a price: Rivers and lagoons have periodically become so toxic with green and brown slime that fish die off, residents are sickened and tourists stay away.Florida algae outbreak is a man-made affliction
The algae-laden runoff flowing down rivers and estuaries after this year's heavy winter rains has hit especially hard along the St. Lucie River nearing the heavily populated Atlantic beaches.
It's an oft-recurring problem. Yet joint federal and state projects agreed upon in 2000 by former Democratic President Bill Clinton and then-Republican Gov. Jeb Bush have been slow to materialize amid tight budgets and political opposition.
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WHAT CAUSES SEVERE ALGAE OUTBREAKS?
It's complicated, but the simple answer is humans. From the late 1800s well into the 1900s, business interests with government cooperation sought to drain the Everglades so land could be developed. Water that naturally flowed south from Lake Okeechobee through the Everglades to Florida Bay was diverted east and west into the St. Lucie and Caloosahatchee rivers and out to sea.
Around the lake, farms, ranches and homes sprang up, producing human and animal waste and fertilizer, all laden with phosphorus and nitrogen that fast-reproducing algae feast upon. Florida's heavy seasonal rains wash the pollutants into the lake and slow-moving rivers, prompting massive blooms almost annually in Florida's summer heat.
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WHAT ARE THE OUTBREAKS' CONSEQUENCES?
Environmental, health and economic. Outbreaks kill fish and other plants by sucking oxygen from the water and releasing toxins. Toxins in the food chain can kill birds, reptiles and mammals. Humans fall sick by touching or breathing toxins. Boaters, fishermen and beachgoers stay away as waters look and smell rancid.
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WHAT ARE THE SHORT-TERM SOLUTIONS?
The U.S. Army Corps of Engineers and the South Florida Water Management District, which control much of the flow through levees and gates, are holding more water north of Lake Okeechobee and sending less water into the rivers. That has alleviated the immediate outbreak, at least in the river. An algae bloom in the lake covers 200 square miles.
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WHAT ABOUT LONG-TERM SOLUTIONS?
Gov. Rick Scott wants to spend unspecified millions to get homeowners off septic tanks and onto sewer lines, reducing nutrient runoff.
Scott also wants federal authorities to expedite an $880 million project strengthening a dike which surrounds <a href="https://www.bing.com/search?q=lake+okeechobee&amp;form=EDGEAR&amp;qs=LS&amp;cvid=2cff9f8c6b4842eba2d936e1995498be&amp;cc=US&amp;setlang=en-US&amp;elv=AY3%21uAY7tbNNZGZ2yiGNjfMc6Hc5uhW2sqhHiyprBz7DAdZnMqGpHrjP7LLlBt4laqBWiq7zyDCFdjvZZH8MlVhcGYwsVm*3H0wsfne90lSU&amp;plvar=0&amp;PC=HCTS">Lake Okeechobee</a>, controlling its water flow. The 18-year project is scheduled for completion in 2025; Scott wants it done faster. Democrats and Republicans are at odds over who's to blame for not allocating extra money.
Eric Draper, Audubon Florida's executive director, said strengthening the Herbert Hoover Dike "won't do anything" to alleviate algae because the <a href="http://www.earth.com/news/dakota-access-easement/">Army Corps</a> of Engineers will never significantly raise Lake Okeechobee's water level.
John Campbell, a Corps spokesman, said even with expedited funding, it's unclear how much faster the project could be completed - given there are only so many qualified contractors to do the work.
---
WHAT ARE ENVIRONMENTAL GROUPS PROPOSING?
Some environmentalists say nature has the best solution: Let the water flow south into the Everglades as it did before man intervened. That's what was proposed in the then-$7.8 billion pact Clinton and Bush negotiated 16 years ago.
To achieve that end, retention reservoirs covering 90 square miles would be built south of Lake Okeechobee. Supporters say the water could be cleaned of phosphorus, nitrogen and other pollutants before releasing it into the Everglades. They say that also would improve the health of Florida Bay, which lost seagrass when dwindling freshwater turned the bay water too salty.
---
DOES EVERYONE AGREE?
No. Brian LaPointe, an algae researcher at Florida Atlantic University's Harbor Branch Oceanographic Institute, said scrubbing the water of so much nitrogen would be nearly impossible. Besides, nitrogen-laden water would be a disaster for the Florida Bay, its seagrass and its coral, he said. Instead, he recommends reducing the amount of nutrients that farmers, ranchers and residents near the lake leech into the water.
---
COULD THE RESERVIOR PLAN BE ENACTED?
That's doubtful in the current political climate. The plan would require buying land owned by powerful cane growers U.S. Sugar Corp. and Florida Crystals. U.S. Sugar struck a deal in 2008 to sell 300 square miles of land to the state for $1.7 billion, but Florida's economy tanked, the state ran low on money, legislators balked and the company changed its mind. Only 42 square miles were purchased for $197 million.
© 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.

Florida algae outbreak is a man-made affliction

Florida algae outbreak is a man-made affliction The enormous algae...

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The hint of an eye in Tropical Storm Estelle. Tropical Storm Estelle continues to strengthen in the Eastern Pacific Ocean and <a href="https://en.wikipedia.org/wiki/NASA">NASA</a> satellite imagery showed what appears to be a developing eye in the storm.

On July 17 at 09:30 UTC (5:30 a.m. EDT), the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument aboard the Suomi NPP satellite captured an image of Tropical Storm Estelle. The VIIRS image showed the hint of a cloud-covered eye in Estelle surrounded by a ring of powerful thunderstorms. The Suomi <a href="http://www.earth.com/news/suomi-npp-satellite-sees-depression-becoming-tropical-storm-darby/">NPP</a> satellite is managed by NASA and NOAA with support from the U.S. Department of Defense.

On July 17 at 5 a.m. EDT, infrared data showed Estelle's cloud tops near the center were as cold as minus 80 Celsius (minus 112 Fahrenheit) and colder during the past couple of hours. On July 18 at 0905 UTC (5:05 a.m. EDT) the Atmospheric Infrared Sounder or AIRS instrument that flies aboard NASA's Aqua satellite provided more infrared temperature data on Estelle. NHC forecaster Brown said, "Although the cloud tops are not as cold as they were yesterday, the area of convection is a little more symmetric around the center indicating that the northwesterly (wind) shear is relaxing."

On July 18 at 11 a.m. EDT (1500 UTC), the center of Tropical Storm Estelle was located near latitude 17.7 North, longitude 114.9 West. That's about 485 miles (780 km) southwest of the southern tip of Baja California, Mexico. Estelle is moving toward the west-northwest near 10 mph (17 kph) and the National Hurricane Center (NHC) said that this general motion is expected to continue for the next couple of days.

Maximum sustained winds are near 70 mph (110 kph) making it just shy of hurricane-strength. NHC said strengthening is likely during the next day or so, and Estelle is forecast to become a hurricane later today or tonight.

At 11 a.m. EDT on July 18, an automated weather observing site on Clarion Island recently reported sustained winds of 59 mph (95 kph) and a gust to 82 mph (133 kph). The estimated minimum central pressure is 991 millibars. A pressure of 995.3 millibars was recently reported on Clarion Island.

Estelle is only expected to be a short-lived hurricane. Within a day and a half to two days, Estelle is forecast to move over cooler sea surface temperatures and later a more stable air mass. Both of those factors are expected to weaken the storm.


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The hint of an eye in Tropical Storm Estelle

The hint of an eye in Tropical Storm Estelle. Tropical...

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NASA sees a tightly wrapped Tropical Cyclone Abela. NASA satellite imagery shows that Tropical Cyclone Abela's center has become tightly wrapped.

On July 16 the first Tropical Cyclone of the year formed in the Southern <a href="https://www.bing.com/search?q=indian+ocean&amp;form=EDGEAR&amp;qs=PF&amp;cvid=513d3f2dd809473e8060183b8e9b47f7&amp;cc=US&amp;setlang=en-US&amp;elv=AY3%21uAY7tbNNZGZ2yiGNjfMc6Hc5uhW2sqhHiyprBz7D1VYxgDhpVZRVajhrTON3dnqPvB6uRsn4mWW6Iau9YNbpeWCjv3rXFHbvNcIcgkhC&amp;plvar=0&amp;PC=HCTS">Indian Ocean</a>. Tropical cyclone 01S, now known as Abela, developed about 320 nautical miles west-southwest of Diego Garcia.

<a href="http://www.earth.com/news/nasa-provides-key-insights-into-sea-level-rise/">NASA's</a> RapidScat instrument measured the surface winds around Tropical Cyclone Abela on July 17 and found the strongest winds stretching from northeast to southeast of the center of circulation (red) near 30 meters per second (67 mph/108 kph). Winds around the rest of the storm were around or less than 22 m/s (50 mph/80 kph). NASA sees a tightly wrapped Tropical Cyclone Abela

RapidScat flies aboard the International Space Station and is helpful to forecasters because it shows where the strongest winds are in the storm (winds are not evenly distributed).

At 1500 UTC (11 a.m. EDT) on July 18, Tropical Cyclone Abela was located near 13.6 degrees south latitude and 59.8 degrees east longitude. That's about 440 nautical miles (506 miles/815 km) north-northeast of Port Louis, Mauritius. Abela has been moving to the west-southwest at 14 knots (16.1 mph/25.9 kph). Maximum sustained winds were near 50 knots (57 mph/92 kph).

On July 18 at 09:30 UTC (5:30 a.m. EDT), the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument aboard the Suomi NPP satellite captured an image of Tropical Cyclone Abela east of Madagascar. The VIIRS image showed a tightly-wrapped low-level center with bands of thunderstorms spiraling into it.NASA sees a tightly wrapped Tropical Cyclone Abela

Tropical Cyclone Abela is forecast to move west-southwest towards Madagascar and will begin weakening because of adverse atmospheric conditions and cooler waters.


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NASA sees a tightly wrapped Tropical Cyclone Abela

NASA sees a tightly wrapped Tropical Cyclone Abela. NASA satellite...

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A cloud-filled eye in a weaker Hurricane Darby. NASA satellite imagery revealed a cloud-filled eye in a weaker Hurricane Darby. Although obscured by clouds in previous days, the eye was apparent in wind data from NASA's RapidScat instrument.

On July 16, NASA's RapidScat instrument measured the surface winds around Hurricane Darby and found the strongest winds all around the storm with the exception of the southwestern quadrant. Sustained winds were greater than 30 meters per second (67 mph/108 kph).

RapidScat flies aboard the International Space Station and is helpful to forecasters because it shows where the strongest winds are in the storm (winds are not evenly distributed).

On July 17 at 09:30 UTC (5:30 a.m. EDT), the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument aboard the Suomi NPP satellite captured an image of Hurricane Darby. The VIIRS image showed cloud-filled eye surrounded by a ring of powerful thunderstorms, and bands of thunderstorms wrapping into the low-level center. A cloud-filled eye in a weaker Hurricane Darby

The Suomi NPP satellite is managed by <a href="https://www.bing.com/search?q=nasa&amp;cvid=0f93214717cd4de1b256392b5c5ecf9e&amp;FORM=ANAB01&amp;PC=HCTS">NASA</a> and NOAA with support from the U.S. Department of Defense.

At 5 a.m. EDT (0900 UTC) on Monday, July 18, the center of Hurricane Darby was located near latitude 18.5 north and longitude 130.2 west. That's about 1,345 miles (2,165 km) west of the southern tip of Baja California, <a href="http://www.earth.com/news/experts-track-the-flow-of-nutrients-in-the-gulf-of-mexico/">Mexico.</a> Darby is moving toward the west near 10 mph (17 kph). NOAA's National Hurricane Center (NHC) said that a westward to west-northwestward motion at a slightly faster forward speed is expected during the next couple of days. Maximum sustained winds have decreased to near 80 mph (130 kph) with higher gusts.

NHC forecaster Roberts noted that "Deep convection associated with Darby continues to diminish this morning with a couple of thin, fragmented curved bands located just to the southwest of the center of circulation."

NHC said additional weakening is forecast during the next 48 hours, and Darby should become a tropical storm later today. For updated forecasts on Darby, visit: <a href="http://www.nhc.noaa.gov/" target="_blank" rel="noopener noreferrer">http://www.nhc.noaa.gov</a>.


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A cloud-filled eye in a weaker Hurricane Darby

A cloud-filled eye in a weaker Hurricane Darby. NASA satellite...

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Overcoming a weakness of global climate models Scientists from the Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI) have overcome a seeming weakness of global climate models. They had previously not been able to simulate the extreme warm period of the Eocene. One aspect of this era that particularly draws interests to climatologists: It was the only phase in recent history when greenhouse gas concentration was as high as researchers predict it to be for the future. The <a href="https://en.wikipedia.org/wiki/NASA">AWI</a> scientists have now found that the apparent model weakness is due to a misinterpretation of the temperature indicator TEX86. These molecules, which are produced by archaea do not record the surface temperature of the ancient ocean as expected, but rather the temperature of water depths up to 500 metres. In the current issue of the journal Nature <a href="http://www.earth.com/news/submerged-vegetation-helps-to-neutralize-ocean-acidification/">Geoscience</a>, the scientists report on this new finding which has now made it possible to correctly simulate the temperature distribution of the Eocene in climate models.

Climate scientists often hear the same complaint: How can climate models accurately predict the future of our planet if it is not even possible to correctly reproduce the climate of the past? One of the unsolved problems was that all previous attempts to simulate the extreme temperatures of the Eocene with climate models failed.

At that time, 49 to 55 million years ago, the carbon dioxide content of the air was likely more than 1000 ppm (parts per million) - i.e. at least two times the current greenhouse gas concentration. The earth warmed up so strongly that the icesheets on Greenland and Antarctica disappeared. Instead of ice crystals, palm trees grew there. "Until recently, we believed that the sea surface temperature near the North Pole at the time was 23 degrees Celsius; in Antarctica, it was believed to have been more than 30 degrees Celsius," says Dr Thomas Laepple, climate researcher at the AWI Potsdam.

These temperature estimates were based on data from the climate indicator TEX86. This abbreviation stands for a ratio of specific organic compounds produced by archaea, depending on the water temperature in which they lived. "Archaea are unicellular organisms that can in part withstand surprisingly high ambient temperatures. The molecules of the organisms that were living at that time are still preserved in the sedimentary layers of the seafloor. They are one of our most important archives for warm climate conditions, but as we have seen, we decoded them wrongly in the past," says Thomas Laepple.

He and his AWI colleague at the time, Sze Ling Ho, first had doubts about the interpretation of the TEX86 temperature indicator during a comparison of climate data from the most recent ice age. The scientists noticed that the TEX86 temperatures were far too cold compared to other geological evidence. "The discrepancy was so obvious that we started to review the TEX86 values of around 3,000 sediment samples from different ocean basins and from different epochs of the Earth. It soon became apparent that the average temperature change inferred from TEX86 was exaggerated, always and on all time scales, by one and a half to two times. The temperature it showed for cold periods was much too cold and the one for warm periods was much too warm," explains geochemist Sze Ling Ho.

The cause of this pattern had to be of a fundamental nature, a suspicion that was confirmed upon closer analysis. "TEX86 had previously been interpreted as an indicator of sea surface temperature, in spite the fact that the archaea that produce TEX86 rarely directly live at the sea surface. Through the comparison with other climate archives, we have been able to constrain the depth in which the TEX86 signal is produced. We now assume that TEX86 represents the water temperature at a depth of up to 500 metres," Sze Ling Ho explains.

At this water depth, the temperature difference between the tropical oceans and the polar seas is smaller than at the surface. This has direct consequences for climate reconstruction, since the information generated from the indicator is differently translated into temperature values. "In practice, the TEX86 extreme values need to be roughly halved in the climate reconstructions. Comparing the corrected temperatures with the models shows that they now reflect the climate of the Eocene in a realistic and physically consistent way," explains Thomas Laepple.

However, we also have to correct our temperature-conception of the Eocene. Thomas Laepple: "The era remains the warmest period of the past 65 million years. The water temperatures that we assumed for the Arctic and Antarctica, though, were overstated by at least ten degrees Celsius. Now, we know that the water in the Southern Ocean had a temperature of about 20 to 25 degrees Celsius at that time. The region was therefore still warm enough for there to be palm trees sprouting on the beach."


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Overcoming a weakness of global climate models

Overcoming a weakness of global climate models Scientists from the...

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NASA sees a weaker Hurricane Darby in infrared light. Infrared imagery from NASA's Aqua satellite shows that Hurricane Darby is losing its punch.

When <a href="https://en.wikipedia.org/wiki/NASA">NASA's</a> Aqua satellite passed over Darby on July 18 at 1047 UTC (6:47 a.m. EDT), the Atmospheric Infrared Sounder known as the AIRS instrument looked at the storm in infrared light. Infrared light provides temperature data, which is important in seeing the height and power of the thunderstorms that make up a tropical cyclone. The colder the cloud tops, the higher they are in the atmosphere, and the stronger the convection or uplift of air (and evaporation, condensation and thunderstorm development). NASA sees a weaker Hurricane Darby in infrared light

AIRS data showed that strong convection had been decreasing as cloud top temperatures warmed. That strong convection continued to decrease during the early morning hours on July 19 according to the National Hurricane Center (NHC). However, NHC noted that Darby still has a well-defined and tight circulation.

NHC Forecaster Cangialosi said "Microwave [satellite] data indicates that the low-level center of Darby is located to the south of the eye feature seen in infrared satellite images, which is likely the result of southerly [vertical wind] shear."

At 5 a.m. PDT (0900 UTC) on July 19 the center of Hurricane Darby was located near 19.4 degrees north latitude and 134.4 degrees west longitude. That's about 1,345 miles (2,165 km) east of Hilo, Hawaii. The estimated minimum central pressure is 988 millibars.

Darby is moving toward the west-northwest near 13 mph (20 kph) and this motion is expected to continue today. A turn toward the west is forecast to occur tonight.

Maximum sustained winds remain near 75 mph (120 kph) and weakening is forecast during the next 48 hours. Darby is likely to become a tropical storm later today.

There are no coastal watches or warnings in effect.


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NASA sees a weaker Hurricane Darby in infrared light

NASA sees a weaker Hurricane Darby in infrared light. Infrared...

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Flood damages in Germany could multiply under climate change. Flood-related losses can be expected to increase considerably in Germany as a result of climate change, a new study shows. Extreme events like the severe floods along the river Elbe have already illustrated the potentially devastating consequences of certain weather conditions such as severe rainfall events, when continuing intense rain can no longer be absorbed by the soil and water levels in the rivers rise. Without appropriate adaptation, flood-related damage of currently about 500 million euros a year could multiply in the future, the comprehensive expert analysis published in the journal Natural Hazards and Earth System Sciences highlights. Flood damages in Germany could multiply under climate change

"Extreme events like the Elbe flood in June 2013 may be rare events, but they have major impacts on people and the environment and cause tremendous financial damage," lead author Fred Hattermann from the Potsdam Institute for Climate Impact Research (PIK) explains. The assessment of damage is therefore of importance for local communities but also for the insurance business. Based on an earlier study on behalf of the German Insurance Association (GDV), the researchers reviewed the extent of potential flood damages and reconfirmed their original results by means of a much broader set of climate model combinations and computer simulations. "Not only does our elaborated analyses illustrate once again how flood-related damage will increase in the future, the damages costs could be even higher than previously thought," Hattermann says.

Rhine, Danube, Elbe, Weser and Ems: 5473 river sections

"We examined in 35 different projections how the five largest river basins in Germany will be affected by climate change up until the end of this century. 5473 river sections of the Rhine, the Danube, the Elbe, the Weser and the Ems were considered," Hattermann explains. These changes in climate were transformed into changes in flood hazards and their damage potential. "It is remarkable how, despite the uncertainties that come with each scenario analysis, all new scenarios project an increase in damage. So it is all the more important to adapt to a changing climate - and there are quite a lot of possibilities to do so when it comes to floods," says co-author Olaf Burghoff, Head of Statistics (Property) and Natural Hazard Modelling of GDV.

"Research is never finished, but is an ongoing process. As scientists we continuously put our work to the test in order to achieve even more robust results," co-author Peter Hoffmann from PIK says. "Here the recheck turned out to be interesting in more ways than one, because the confirmation of our results also showed that the previous estimates were too conservative." To compute the potential damage, only private houses and small enterprises were considered, but no large firms or power plants which are usually located near rivers. In reality, total economic losses can be essentially higher.
###
Article: Hattermann, F.F.; Huang, S.; Burghoff, O.; Hoffmann, P.; Kundzewicz, Z. (2016): Brief Communication: An update of the article „Modelling flood damages under climate change conditions - a case study for Germany". Nat. Hazards Earth Syst. Sci.

Weblink to the article once it is published: <a href="http://www.natural-hazards-and-earth-system-sciences.net/index.html" target="_blank" rel="noopener noreferrer">http://www.natural-hazards-and-earth-system-sciences.net/index.html</a>

Link to the previous study on behalf of the German Insurance Association (GDV): Hattermann, F.F.; Huang, S.; Burghoff, O.; Willems, W.; Österle, H.; Büchener, M.; Kundzewicz, Z. (2014): Modelling flood damage under climate change conditions - a case study for Germany. Nat. Hazards Earth Syst. Sci., 14, 3151-3168. [DOI:10.5194/nhess-14-3151-2014] <a href="http://www.nat-hazards-earth-syst-sci.net/14/3151/2014/" target="_blank" rel="noopener noreferrer">http://www.nat-hazards-earth-syst-sci.net/14/3151/2014/</a>

For further information please contact:
PIK press office
Phone: +49 331 288 25 07
E-Mail: <a href="mailto:press@pik-potsdam.de">press@pik-potsdam.de</a>
Twitter: <a href="http://www.twitter.com/PIK_Climate" target="_blank" rel="noopener noreferrer">@PIK_Climate</a>
<a href="http://www.pik-potsdam.de/" target="_blank" rel="noopener noreferrer">http://www.pik-potsdam.de</a>

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Flood damages in Germany could multiply under climate change

Flood damages in Germany could multiply under climate change. Flood-related...

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Aqua satellite sees an almost symmetrical Tropical Storm Estelle. <a href="https://www.earth.com/video/nasa-telescope-will-capture-millions-of-galaxies/">NASA's</a> Aqua satellite saw an almost well-rounded Tropical Storm Estelle and identified the locations of the strongest convection in the developing eyewall.

At 10:00 UTC (6 a.m. EDT) today, July 19, NASA's Aqua satellite passed over Tropical Storm Estelle from space and gathered infrared data on the storm. The MODIS instrument, or Moderate Resolution Imaging Spectroradiometer, collected the infrared data that showed a circular storm with two areas of strongest convection (rising air that forms the thunderstorms that make up the storm) where cloud top temperatures were as cold as minus 70 degrees Fahrenheit (minus 56.6 degrees Celsius). Those strongest storms were located around the developing eye northeast and southwest of the center. Aqua satellite sees an almost symmetrical Tropical Storm Estelle

Satellite imagery shows that Estelle is strong and almost symmetrical, but periodically dry air has crept into the mid-levels of the tropical storm and prevented further intensification and development of a closed eyewall.

An eyewall is located just outside of the eye and often consists of a vertical wall of clouds. This is the location within a hurricane where the most damaging winds and intense rainfall is found. The eye is a clear area where air sinks and lowest surface pressure can be found. The eye is the point from which the rest of the storm rotates.

At 5 a.m. EDT (0900 UTC) on July 19, 2016 the center of Tropical Storm Estelle was located near 18.5 north latitude and 117.6 west longitude. That's about 585 miles (940 km) west-southwest of the southern tip of Baja California, Mexico.

Estelle was moving toward the west-northwest near 10 mph (17 kph) and the National Hurricane Center (NHC) said that a motion toward the west or west-northwest with some increase in forward speed is expected over the next couple of days. The estimated minimum central pressure is 993 millibars.

Maximum sustained winds are near 65 mph (100 kph) and NHC said some strengthening is possible during the next day or so, and Estelle could still become a hurricane later today. For the latest updates on Estelle, visit the NHC website: <a href="http://www.nhc.noaa.gov/" target="_blank" rel="noopener">http://www.nhc.noaa.gov</a>.

NHC forecaster Stewart said that gradual weakening is expected to begin on Wednesday when Estelle is forecast to move over cooler sea surface temperatures. Those temperatures are cooler than the 26.6 degrees Celsius (80 degrees Fahrenheit) needed to sustain a tropical cyclone. Estelle will also be moving into a drier and more stable air mass which will also sap the tropical cyclone's strength.


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Aqua satellite sees an almost symmetrical Tropical Storm Estelle

Aqua satellite sees an almost symmetrical Tropical Storm Estelle. NASA's...

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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



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Designing crops that can beat the heat

[sendtonews key="QGPzYnXEtN-1712599-12187" type="single"] Today’s Video of the Day from Carl...

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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



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Remote sensing will revolutionize the way we monitor trees

[sendtonews key="EjmSP20gQK-2593093-12187" type="single"] Today's Video of the Day from NASA...

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Lesotho: Africa's "Kingdom in the Sky" Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features northwest Lesotho in South Africa.



According to ESA, Lesotho is the only nation in the world that lies completely above 1,000 m in elevation. The country is famous for its tall mountains and narrow valleys, and is known as Africa's "Kingdom in the Sky."



Out of a population of around two million people, about 80 percent live in rural areas. More than 75 percent of these people are engaged in <a href="https://www.earth.com/news/climate-change-will-have-a-global-impact-on-agriculture/">agriculture</a>, including rainfed cereal production and animal grazing.&nbsp;



ESA reports that the country’s agricultural system faces a growing number of issues, with climate-related vulnerabilities such as drought, floods and extreme temperatures occurring more frequently. 



Diamonds are amongst the minerals found in the mountains. Indeed, Lesotho can truly be called the Kingdom in the Sky. Beautiful, culturally rich, safe, affordable, and easily accessible from Durban and Johannesburg, mountainous Lesotho is a vastly underrated travel destination. the Kingdom of Lesotho (Sotho: 'Muso oa Lesotho) is an enclaved country in southern Africa. It is just over 30,000 km2 (11,583 sq mi) in size and has a population of around 2 million.



Video Credit: ESA&nbsp;&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> Staff Writer 



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Lesotho: Africa's "Kingdom in the Sky"

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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



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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



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The rapid retreat of the Columbia Glacier

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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



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2022 illustrated the consequences of a warming climate

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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



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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



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Tiger sharks are shifting poleward as temperatures rise

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

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> is focused on the melt ponds that emerge during the spring and summer on the Greenland Ice Sheet, which is the largest ice mass in the northern hemisphere.



"Melt ponds are vast pools of open water that form on both sea ice and ice sheets and are visible as turquoise-blue pools of water in this Copernicus Sentinel-2 image," says ESA.



"When snow and ice melts atop glaciers, water flows in channels and streams and collects in depressions on the surface. These melt ponds can speed up the melting of the surrounding ice since they greatly reduce the ice’s ability to reflect sunlight."



"This can create a positive feedback where an increasing number of melt ponds absorb more heat which causes ice cover to melt even faster."



According to ESA, Greenland has been hit with a late-season heatwave that began in early September. This caused the type of melt event that usually occurs in the middle of summer.



"In a recent paper published in Nature Climate Change, scientists found that major sea-level rise from the melting of the Greenland ice cap is now ‘inevitable’ even if the burning of fossil fuels were to halt overnight," says ESA. "Using satellite observations of Greenland ice loss and ice cap from 2000 to 2019, the team found the losses will lead to a minimum rise of 27 cm regardless of climate change."



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



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Melt ponds on the Greenland Ice Sheet

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> describes how Earth is unique in our solar system for its ability to sustain liquid water on its surface. But now, the water cycle is shifting as the climate warms, and scientists must find ways to predict how these changes will affect water availability.



Overall, 96 percent of Earth's water is saltwater, and nearly all of freshwater is found in ice and groundwater. These sources of water are linked as it passes through solid, liquid and gas phases.



In a warmer climate, the water cycle will be transformed. It will be easier for water to evaporate and form clouds, and storms will become more frequent and intense. Some regions will get too much water, while others will be left without enough water. In addition, soil moisture will be lost - which threatens food security.



Scientists are using satellite data from over the last 40 years to track changes that are happening in the water cycle. This will ultimately help us prepare for extreme events and better manage our water resources, according to ESA.



Video 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.

Tracking changes in Earth's water cycle

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Saturn,-,High,Resolution,3d,Images,Presents,Planets,Of,The

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Today's Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard Space Flight Center</a> features images of Saturn from NASA’s Hubble Space Telescope. The photographs capture the start of the mysterious "spoke season" on Saturn - when unexplained features appear on its rings. 



According to NASA, both the cause of the spokes and their seasonal variability have yet to be fully explained by planetary scientists.



"Like Earth, Saturn is tilted on its axis and therefore has four seasons, though because of Saturn's much larger orbit, each season lasts approximately seven Earth years. Equinox occurs when the rings are tilted edge-on to the Sun," explains NASA.



"The spokes disappear when it is near summer or winter solstice on Saturn. (When the Sun appears to reach either its highest or lowest latitude in the northern or southern hemisphere of a planet.) As the autumnal equinox of Saturn's northern hemisphere on May 6, 2025, draws near, the spokes are expected to become increasingly prominent and observable."



Experts believe that the spokes may be a product of the planet's variable magnetic field. When magnetic fields interact with solar wind, an electrically charged environment is created. This phenomenon is visible on Earth as the northern lights.&nbsp;



"Scientists think that the smallest, dust-sized icy ring particles can become charged as well, which temporarily levitates those particles above the rest of the larger icy particles and boulders in the rings," says NASA.



The spokes were first observed in the early 1980s by NASA's Voyager mission. Depending on the angle of the rings, the spokes can appear dark or light.



"Thanks to Hubble's OPAL program, which is building an archive of data on the outer solar system planets, we will have longer dedicated time to study Saturn’s spokes this season than ever before," said NASA senior planetary scientist Amy Simon, head of the Hubble Outer Planet Atmospheres Legacy (OPAL) program.



"Despite years of excellent observations by the Cassini mission, the precise beginning and duration of the spoke season is still unpredictable, rather like predicting the first storm during hurricane season."



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.

Mysterious "spoke season" captured on Saturn

[sendtonews key="Ccjk8KEMzv-2550719-12187" type="single"] Today's Video of the Day from NASA...

Closeup,Of,Fresh,Green,The,Napier,Bush,Grass,As,Animal

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Today’s Video of the Day from <a href="http://www.ntu.edu.sg/">NTU Singapore</a> reveals that some plants can remove toxic heavy metals from soil.&nbsp;



The researchers analyzed samples of various tropical plant species to test for levels of heavy metals and metalloids. The study showed that there are existing plants with high levels of these contaminants, which means that these species are great candidates for drawing pollutants out of the soil.&nbsp;



Among the plants examined in the study, 12 species had accumulated several types of heavy metals and metalloids. These plants are widely available, including species that are native to Singapore.



“In a small nation like Singapore, land may be repurposed to support new development plans, so it is important that we have a green and sustainable way to remediate land that is contaminated," said Professor Lam Yeng Ming.



"We set out to uncover how to better make use of tropical plants to do phytoremediation and through advanced characterization techniques, we showed how some of these tropical plant species can be an environmentally friendly and literally a 'green' way to remove contaminants in soil."&nbsp;



"Phytoremediation also has benefits of cost effectiveness, simplicity of management, aesthetic advantages, and long-term applicability and sustainability. The strategy prevents erosion and metal leaching by stabilizing or accumulating heavy metals, so that helps reduce the risk of contaminant spread.”



Video Credit: NTU Singapore



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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.

Plants help remove heavy metals from contaminated soil

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Today’s Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> describes why herbicides are not as effective in killing weeds anymore. In the 20th century, chemical companies developed thousands of herbicides. The most commonly used herbicide was glyphosate, which was introduced in 1974.



Over the past few decades, dozens of species of weeds have evolved resistance to glyphosate. Depending on the site of action, the part of the plant that an herbicide interacts with, weeds may even be resistant to herbicides that have not been developed yet.&nbsp;



With increasing resistance to glyphosate and other herbicides, weeds are - once again - becoming a major concern for farmers.&nbsp;



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



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.

Weeds are becoming increasingly resistant to herbicides

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Today’s Video of the Day from the <a href="https://www.jpl.nasa.gov/">NASA Jet Propulsion Laboratory</a> (JPL) describes a dust storm on Mars that was nearly twice the size of the United States. As the storm covered the southern hemisphere of the planet, some of NASA’s explorers had to delay their normal activities.



NASA’s Insight lander put itself in a "safe mode" for 11 days to conserve battery power because solar power was disrupted by the dust. The Ingenuity Mars Helicopter postponed flights until conditions improved.



"A fleet of NASA orbiters monitor Martian dust storms like this one and serve as lifelines to Earth by relaying data from the rovers and lander on the ground back to the team. This includes the Mars Reconnaissance Orbiter, MAVEN, and Odyssey," reports JPL.



"Dust storms like this recent one start close to the ground and are spread by wind as they rise – warming the cold Martian atmosphere."



The images in the video were captured by NASA’s Curiosity as the dust rolled in. A fleet of orbiters monitored the dust storm from above, relaying data from Mars’ explorers back to scientists on Earth.



Video &amp; Image Credit: NASA/JPL-Caltech/ASU/MSSS



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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.

NASA monitors giant dust storms on Mars

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Today's Video of the Day from the <a href="http://www.esa.int/">European Space Agency</a> features Qeshm Island in the Strait of Hormuz. This strait provides the only sea passage from the Persian Gulf to the open ocean.



Qeshm is separated from the Iranian coast by the Clarence Strait, also known as Khuran.&nbsp;The Hara Forest Protected Area is a network of shallow waterways and forest located between the island and the mainland. This protected region is home to sea turtles, snakes, and more than 150 species of migrating birds.



Qeshm is famous for its wide range of&nbsp;ecotourist&nbsp;attractions, such as the&nbsp;Hara marine forests. According to environmentalists, about 1.5 percent of the world birds and 25 percent of Iran's native <a href="https://www.earth.com/news/female-hummingbirds-avoid-sexual-harassment-by-looking-like-males/">birds</a> annually migrate to the forests, which are the first national geo park in Iran.



Tourists are also drawn to the island to see an age-old Portuguese&nbsp;fort, historic mosques, the&nbsp;Seyyed Mozaffar&nbsp;and&nbsp;Bibi Maryam&nbsp;shrines, and the "Valley of Stars."



The average temperature on the island is 81 degress and the region is often hot and humid. From June to August, the island is described as being oppressively hot. The ideal time to visit is during the winter season. 



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.

Qeshm Island in the Strait of Hormuz

[sendtonews key="sFFhiK9OOn-1720418-12187" 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 Inhambane Bay in southeast Mozambique.&nbsp;



"Inhambane Bay is a deep inlet into which the small Mutamba River flows," says ESA. "On one side of the bay lies the historical city of Inhambane, capital of the Inhambane Province, while the sister city of Maxixe, the economic capital of Inhambane, sits across from it. The province is the second largest grower of cashews, after Nampula, and it also produces coconut and citrus fruits."



The beaches of Barra and Tofo are popular with tourists. There are also coral reefs along the long coastline of Inhambane, making it an ideal destination for scuba diving and snorkeling.



"Mozambique’s extensive coastline heightens the country’s vulnerability to tropical cyclones that develop in the Indian Ocean as well as storm surge flooding," says ESA.



"More than half of the population lives in low lying coastal areas, putting communities at risk. Inhambane Bay was dangerously close to where Cyclone Idai made landfall in 2019 causing widespread destruction to the country."



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.

Inhambane Bay in southeast Mozambique

[sendtonews key="yPSXGZek1I-2312529-12187" 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>&nbsp;features the Kangerlussuaq Glacier, one of the largest tidewater outlet glaciers in Greenland. The glacier is located on the east coast of the Greenland ice sheet.



As human-induced climate change continues to drive up temperatures, global ice loss is accelerating at an alarming rate. ESA reports that, over the past decade alone, 3.5 trillion tons of ice have melted from the Greenland ice sheet. This is enough to cover the UK with meltwater 15 meters deep.



Based on satellite imagery, researchers determined that Kangerlussuaq entered a new phase of rapid retreat and acceleration in 2017. In their study, published in <a href="https://www.frontiersin.org/articles/10.3389/feart.2019.00123/full">Frontiers in Earth Science</a>,&nbsp; the experts report that the glacier's ice front is now at its most retreated position since the early 20th century.



"Given Kangerlussuaq’s previous impacts on both the magnitude and pattern of ice sheet wide mass loss, we predict that its new phase of retreat, acceleration and thinning will markedly enhance the south-east region’s contribution to increasing discharge from the ice sheet," wrote the study authors.&nbsp;&nbsp;



"More broadly, accurate forecasting of the ice sheet’s contribution to sea level rise will require a deeper understanding of, and responses to, these non-linear ice dynamic processes."



Video 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.

Kangerlussuaq Glacier on the Greenland ice sheet

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> describes the complex relationship between ocean and climate. ESA's Climate Change Initiative will help us understand how oceans influence the climate and how climate change is impacting the oceans.&nbsp;



"Earth’s oceans are huge heat stores, soaking up 93% of the excess heat from human activity over the past 70 years. Ocean currents redistribute heat around the planet, from the Equator to the poles. Where this ocean heat goes influences weather patterns and regional climate," explains ESA.



"As well as absorbing heat, oceans are a natural carbon sink, absorbing a quarter of carbon dioxide emissions from human activity. This has led to the acidification of ocean water, threating marine life."



The amount of heat and carbon dioxide soaked up by the ocean depends on specific variables, including phytoplankton, temperatures, waves, salinity, and ice cover. Satellites can be used to measure these variables from space.



"From their unique vantage point, satellites provide key information for understanding the complexities of our planet and monitoring environmental issues," says ESA.



Video 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.

Ocean heat influences regional climate

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> describes the importance of monitoring the shape of the sea surface, which is constantly changing. These observations have many applications, such as ship routing, <a href="https://www.earth.com/news/the-modem-ocean-is-a-tough-place-for-whales-to-survive/">ocean</a> current forecasting, and debris tracking.



"A project supported by the Discovery element of ESA’s Basic Activities recently investigated a new technique to measure sea surface topography very precisely," reports ESA.



"The technique involves looking at satellite navigation (GNSS) signals that have been reflected off of the sea surface at very low angles. At these so-called grazing angles, waves and surface roughness have very little impact on the reflection process; the sea surface acts as a very smooth mirror."



Estel Cardellach is the principal investigator at the Institute for Space Studies of Catalonia, who first submitted the idea for the project.



“In a mirror-like reflection the phase of the signal can be tracked – it is continuous," said Cardellach. "Different surface heights result in different phase measurements. It gives a very precise measurement of the surface altitude at a few centimetres’ precision.”



The researchers developed a GNSS receiver and set up an experiment in the Balaeric Islands to collect signals from the receiver that were reflected off the sea surface. Ultimately, these signals will provide improved measurements of the shape of the sea surface.



Image/ Video 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

Monitoring the dynamic shape of the sea surface

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Aerial,Photo,Of,River,In,Amazon,Rainforest,Jungle,In,Peru

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Today’s Video of the Day from <a href="https://www.nasa.gov/goddard">NASA’s Goddard Space Flight Center</a> describes how scientists are using autonomous sound sensors to monitor deforestation in the Amazon. By recording soundscapes, the experts can determine which animals are present through their distinct sounds.&nbsp;



Using this method, sounds can be used as scientific measurements to analyze the effects of deforestation. The researchers will gain a better understanding of how the acoustics of a forest can be used to measure its health.&nbsp;



"From space, parts of the Amazon rainforest that have previously been logged or burned may look lush and green, like a place buzzing with activity and full of sounds. But inside the rainforest, the animal life may tell a different story, of a harsh environment and a quieter soundscape," says NASA.



Video Credit: NASA’s Goddard Space Flight Center&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

Monitoring deforestation in the Amazon through sounds

[sendtonews key="u0TYxxqfF7-2186404-12187" type="single"] Today’s Video of the Day from NASA’s...