You probably know at least a little bit about ocean circulation around the world, also known as currents. In fact, you may have felt smaller currents yourself on a day at the beach.



But have you heard bout the "great global ocean conveyor belt," which is a vast network of currents that constantly moves water around the entire planet?



This massive system helps distribute heat around the world, influencing everything from temperatures to rainfall. Unfortunately, it's slowing down and on the verge of total collapse.



Scientists have been studying this phenomenon, and according to recent research published in <a href="https://www.nature.com/articles/s41561-024-01568-1" target="_blank" rel="noreferrer noopener">Nature Geoscience</a>, it's a bigger deal than we thought. 



<h2 class="wp-block-heading" id="h-ocean-circulation-and-the-amoc">Ocean circulation and the AMOC?</h2>



The Atlantic Meridional Overturning Circulation, or AMOC, is like a massive ocean conveyor belt that moves warm and cold water around the <a href="https://www.earth.com/news/why-the-atlantic-ocean-may-ultimately-vanish/" target="_blank" rel="noreferrer noopener">Atlantic Ocean</a>. 



It starts in the Gulf of Mexico, where warm, salty water flows northward along the eastern coast of the United States and across the Atlantic towards Europe. 



As this warm water reaches the North Atlantic, it cools down, becomes denser, and sinks deep into the ocean. 



This sinking process pulls more warm water north to replace it, creating a continuous loop that helps <a href="https://www.earth.com/news/collapse-of-major-ocean-system-would-cause-weather-chaos/" target="_blank" rel="noreferrer noopener">regulate the climate</a> by distributing heat across the planet. 



Thanks to the AMOC, regions like Western Europe enjoy milder winters than they would otherwise.



Humans rely on the AMOC in several important ways. By regulating global temperatures, it helps maintain stable weather patterns, which are crucial for agriculture, ecosystems, and our daily lives. 



Researchers point out that the Atlantic Meridional Overturning Circulation (AMOC) is now weaker than at any other time in the past 1,000 years.



The research team from several leading universities explains that global warming is behind this slowdown. 



Their new modeling suggests that meltwater from the <a href="https://www.earth.com/news/greenlands-melting-icebergs-may-not-be-threat-to-ocean-currents-amoc/" target="_blank" rel="noreferrer noopener">Greenland ice sheet</a> and Canadian glaciers could be the missing piece of the puzzle.



<h2 class="wp-block-heading" id="h-why-should-we-care-about-this">Why should we care about this?</h2>



"Our results show the Atlantic overturning circulation is likely to become a third weaker than it was 70 years ago at 2°C of global warming," says the research team. 



"This would bring big changes to the <a href="https://www.earth.com/news/the-arctic-is-melting-fast-but-a-slowing-ocean-current-could-help/" target="_blank" rel="noreferrer noopener">climate and ecosystems</a>, including faster warming in the southern hemisphere, harsher winters in Europe, and weakening of the northern hemisphere's tropical monsoons."



Think about that for a second. A weaker ocean current could mean colder winters in Europe and shifts in rainfall patterns that affect millions of people. It's not just about the ocean; <a href="https://www.earth.com/news/disastrous-climate-changes-of-the-last-ice-age-could-happen-again/" target="_blank" rel="noreferrer noopener">it's about our daily lives</a>.



<h2 class="wp-block-heading" id="h-meltwater-and-ocean-circulation">Meltwater and ocean circulation</h2>



The Earth has already warmed 1.5ºC since the industrial revolution. And get this: the Arctic has been heating up nearly four times faster than the rest of the planet. 



All that heat is melting Arctic sea ice, glaciers, and the Greenland ice sheet.



"Since 2002, Greenland lost 5,900 billion tons (gigatons) of ice," notes the research team. "To put that into perspective, imagine if the entire state of Texas was covered in ice 26 feet thick."



All this fresh meltwater flowing into the subarctic ocean is lighter than salty seawater, so it doesn't sink as much. 



That messes with the southward flow of deep, cold waters from the Atlantic and <a href="https://www.earth.com/news/climate-change-will-impact-the-gulf-stream-more-than-we-thought/" target="_blank" rel="noreferrer noopener">weakens the Gulf Stream</a> -- the same current that gives Britain its mild winters.



<h2 class="wp-block-heading" id="h-ripple-effects-around-the-globe">Ripple effects around the globe</h2>



So, what's the big deal with the Gulf Stream slowing down? Well, for starters, Europe could face harsher winters. 



<a href="https://www.earth.com/news/climate-paradox-ocean-current-collapse-could-plunge-europe-into-cold/" target="_blank" rel="noreferrer noopener">Places like Britain</a> might start feeling more like their chilly counterparts at the same latitude, such as parts of Canada.



<figure class="wp-block-image aligncenter size-full is-resized"><a href="https://www.earth.com/wp-content/uploads/2024/11/Atlantic-Meridional-Overturning-Circulation_AMOC_collapsing_Nature-Geoscience_1m.jpg" target="_blank" rel="noreferrer noopener"><img src="https://www.earth.com/wp-content/uploads/2024/11/Atlantic-Meridional-Overturning-Circulation_AMOC_collapsing_Nature-Geoscience_1s.webp" alt="The addition of meltwater in the North Atlantic leads to localised cooling in the subpolar North Atlantic and warming in the South Atlantic. Credit: Nature Geoscience (2024)." class="wp-image-1951410" style="width:300px;height:auto"/></a><figcaption class="wp-element-caption">The addition of meltwater in the North Atlantic leads to localised cooling in the subpolar North Atlantic and warming in the South Atlantic. Credit: Nature Geoscience (2024).</figcaption></figure>



"Our new research shows meltwater from the Greenland ice sheet and Arctic glaciers in Canada is the missing piece in the climate puzzle," the researchers explain. 



When they included this meltwater in their simulations, the slowing of the oceanic circulation made sense.



The study confirms that the Atlantic overturning circulation has been slowing down since the mid-20th century. It also gives us a sneak peek into <a href="https://www.earth.com/news/atlantic-and-arctic-mixing-is-crucial-for-earths-climate-stability/" target="_blank" rel="noreferrer noopener">what's coming next</a>.



<h2 class="wp-block-heading" id="h-northern-and-southern-oceans-connected">Northern and Southern oceans connected</h2>



"Our new research also shows the North and South Atlantic oceans are more connected than previously thought," the team states. 



Changes in one part of the ocean can quickly affect distant regions. When the oceanic circulation is strong, it transfers a lot of heat to the <a href="https://www.earth.com/news/antarctic-warming-triggers-rising-north-atlantic-sea-levels/" target="_blank" rel="noreferrer noopener">North Atlantic</a>. 



But when it weakens, the surface of the ocean south of Greenland doesn't warm up as much, leading to what's called a "warming hole." Meanwhile, the South Atlantic ends up storing more heat and salt.



<h2 class="wp-block-heading" id="h-time-is-not-on-our-side">Time is not on our side</h2>



"Our simulations show changes in the far North Atlantic are felt in the South Atlantic Ocean in less than two decades," the researchers reveal. This means the effects of the slowdown are spreading faster than we thought.



Climate projections have suggested the Atlantic overturning circulation will weaken by about 30% by 2060. But hold on -- that's without considering all that extra meltwater.



"The Greenland ice sheet will continue melting over the coming century, possibly raising global sea level by about 4 inches," the study notes. 



"If this additional meltwater is included in climate projections, the overturning circulation will weaken faster. It could be 30% weaker by 2040. That's 20 years earlier than initially projected."



<h2 class="wp-block-heading" id="h-what-can-we-do">What can we do?</h2>



Such a rapid decrease in the overturning circulation will shake things up. 



Europe might see colder winters, the northern tropics could get drier, and places like the southern United States might experience warmer, wetter summers.



"Our climate has changed dramatically over the past 20 years," the researchers warn. "More rapid melting of the ice sheets will accelerate further disruption of the climate system."



So, what does this all mean for us? It means we have even less time to get our act together. Reducing emissions isn't just a good idea -- it's crucial.



Our planet's systems are interconnected in ways we're only beginning to understand. If we want to keep things from getting worse, we need to act now. Every little bit counts, and the clock is ticking.



The full study was published in the journal <a href="https://www.nature.com/articles/s41561-024-01568-1" target="_blank" rel="noreferrer noopener">Nature Geoscience</a>.



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Collapse of Earth's main ocean water circulation system is already happening

You probably know at least a little bit about ocean circulation around the world, also known as currents. In fact, you may have felt smaller currents yourself on a day at the beach. But have you heard bout the "great global ocean conveyor belt," which is a vast network of currents that constantly moves water around the entire planet? This massive system helps distribute heat around the world, influencing everything from temperatures to rainfall. Unfortunately, it's slowing down and on the verge of total collapse. Scientists have...

The last reversal of Earth’s magnetic field may have taken much longer to complete than previously thought, according to a new study. 

Roughly every few hundred thousand years, the Earth’s magnetic poles switch, and research suggests that we may be <a href="https://www.earth.com/news/earths-magnetic-poles-flip/">overdue for another reversal</a>. 

Earth’s magnetic field is produced by spinning molten iron in the Earth’s core. The field protects the planet from harmful solar and cosmic radiation. A pole reversal could leave us exposed to this radiation, interfere with satellites, and even shut down power grids. 

We depend on the magnetic poles, and yet researchers know very little about how and why field reversals occur. 

Researchers from the <a href="https://www.wisc.edu/">University of Wisconsin-Madison</a> examined lava flows, ice cores, and magnetic readings from the seafloor to piece together a complete picture of the Earth’s magnetic field during the last pole reversal, which took place around 777,000 years ago.  

That reversal, called the Matuyama-Brunhes reversal, took around 22,000 years to complete, much longer than previously realized, according to the study published in the journal Science Advances. 

“Unless you have a complete, accurate and high-resolution record of what a field reversal really is like at the surface of the Earth, it’s difficult to even discuss what the mechanics of generating a reversal are,” said Brad Singer, a geologist involved in the study.  

The researchers collected and analyzed samples from lava flows in Chil, Tahiti, Hawaii, the Caribbean, and the Canary Islands. 

“Lava flows are ideal recorders of the magnetic field. They have a lot of iron-bearing minerals, and when they cool, they lock in the direction of the field,” said Singer. “But it’s a spotty record. No volcanoes are erupting continuously. So we’re relying on careful fieldwork to identify the right records." 

The team reviewed data from Antarctic ice cores to reconstruct a record of the Earth’s magnetic field over a period of 70,000 years. 

During the final stages of the last field reversal, the poles snapped into their new positions in just 4,000 years. However, this final stage was preceded by a long period of instability and partial reversals that took nearly 18,000 years. 

The study shows that pole reversals take nearly twice as long as previously thought. 

As the magnetic field has consistently been getting weaker each century, there are concerns that we’re in the midst of an imminent reversal. But this study shows that while a weakening field is a tell-tale precursor to a pole flip, it may be sometime before the poles completely switch positions. 

“I’ve been working on this problem for 25 years,” said Singer. “And now we have a richer record and better-dated record of this last reversal than ever before.”

--

By <a href="mailto:kayvandette@gmail.com">Kay Vandette</a>,<a href="https://www.earth.com/"> Earth.com</a> Staff Writer 

Image Credit: Shutterstock/Marc Ward

Earth’s magnetic field may have taken longer to reverse than previously thought

The last reversal of Earth’s magnetic field may have taken...

New study reveals true evolution of Earth’s plate tectonics. A new study from researchers at <a href="https://www.jhu.edu/">John Hopkins University</a> has revealed that Earth’s plate tectonics have evolved over the last 2.5 billion years. 

This conclusion refutes previous contradictory findings that <a href="http://www.earth.com/news/natural-lubrication-plate-tectonics/">plate tectonics</a> have always been a part of Earth’s history, or that they appeared only about 0.7 billion years ago.

This new discovery, published in <a href="https://www.nature.com/">Nature</a>, will inevitably shift scientists’ understanding of how Earth has changed within its 4.56-billion-year history.New study reveals true evolution of Earth’s plate tectonics

"One of the key ways to understand how Earth has evolved to become the planet that we know is plate tectonics," said first author Robert Holder, a Postdoctoral Fellow in Earth and Planetary Sciences at Johns Hopkins.

Plate tectonics are responsible for the shifting of continents across the Earth’s surface. They create volcanoes and earthquakes, predict erosion and ocean circulation cycles, and ultimately allow life on Earth to evolve.

Holder and his colleagues analyzed a global compilation of metamorphic rocks from 564 sites, each of which had formed over the past 3 billion years. Metamorphic rocks are formed underground, where they are transformed from regular rocks via heat deep within Earth’s crust into their new metamorphic form.

By measuring the depth and temperatures at which metamorphic rocks form, scientists can predict temperature at different levels in Earth’s crust. And because tectonic plates influence heat flow, these rocks act as a history book for Earth’s past with tectonic plates. This is how the team concluded that plate tectonics evolved gradually over the last 2.5 billion years.

"The framework for much of our understanding of the world and its geological processes relies on plate tectonics," Holder said. "Knowing when plate tectonics began and how it changed impacts that framework."

--

By <a href="mailto:oliviagharvey24@gmail.com">Olivia Harvey</a>, <a href="http://earth.com">Earth.com</a> Staff Writer

Image Credit: Shutterstock/Mopic

New study reveals true evolution of Earth’s plate tectonics

New study reveals true evolution of Earth’s plate tectonics. A...

Researchers at the <a href="http://www.mit.edu/">Massachusetts Institute of Technology</a> (MIT) have investigated how much the cost of energy storage must fall before the use of <a href="http://www.earth.com/news/renewable-energy-carbon-capture/">renewable energy</a> can reach its full potential. The experts estimated the target costs that would allow solar and wind energy to compete with other on-demand energy sources, and examined which types of technology could be used to help reach these targets. 

"One of the core sources of uncertainty in the debate about how much renewable energy can contribute to the deep decarbonization of electricity is the question of how much energy storage can be improved," explained study senior author Professor Jessika Trancik. 

"Different assumptions about the cost of energy storage underlie significant disagreements between a number of assessments, but little was known about what costs would actually be competitive and how these costs compare to the storage technologies currently being developed. So, we decided to address this issue head on."

"Quantifying cost targets for energy storage required a new piece of insight about how patterns of the renewable energy supply, and fluctuations in this supply, compared to electricity demand profiles. Large but infrequent solar and wind shortage events are critical in determining how much storage is needed for renewables to reliably meet demand, and it's important to understand the characteristics of these events."

The study was focused on the costs of using storage together with wind and solar energy to reliably supply various outputs for twenty years. Next, the team modeled the target costs that would make these renewable options competitive.

The researchers also analyzed the characteristics that distinguish various storage options. For example, some technologies are designed to store large quantities of energy inexpensively, but with a slower output. Other technologies are designed to store smaller amounts of energy that can be discharged at high speeds. 

The study revealed that technologies with energy storage capacity costs below $20/kWh could enable cost-competitive power that is consistently available over a twenty-year period. Professor Trancik said that it is critical to reduce the costs of the materials and manufacturing that contribute to the cost of the storage energy capacity. 

"The numerical target we estimate, which varies with location, could mean a 90 percent drop in storage costs relative to today's technologies. It's a large drop but some technologies do tend to improve a lot, as we've seen in the case of solar panels, for example.'

"However, and importantly, there is another factor that could raise this target considerably and allow more expensive technologies to cost-competitively store renewable energy, which is to use supplemental technologies for a small percent of the time," explained Professor Trancik.

The team is now exploring options for low-cost and low-carbon supplemental technologies. 

The study is published in the journal <a href="https://www.cell.com/joule/home">Joule</a>.

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Paid for by <a href="http://earth.com">Earth.com</a>

Image Credit: Shutterstock/artjazz

Renewable energy storage costs may soon become more competitive

Researchers at the Massachusetts Institute of Technology (MIT) have investigated...

A fossil specimen that was sitting in storage for the past 30 years was recently discovered as belonging to a <a href="https://www.earth.com/news/new-small-dinosaur-species-australia/">new species of dinosaur</a>. 

Kimberley Chapelle, a Ph.D. student at the <a href="https://www.wits.ac.za/">University of the Witwatersrand</a>, along with a team of researchers, recognized something unusual about a dinosaur fossil collection in Johannesburg, namely that one specimen didn’t belong there. 

The researchers realized that the dinosaur belonged to an entirely new species of sauropodomorph and was part of a new genus as well. 

It was a remarkable find that was hiding in plain sight, according to the researchers. 

The specimen was called Ngwevu intloko which translates to “grey skull” in the Xhosa language. 

Xhosa is one of the official languages of South Africa.

[caption id="attachment_1876185" align="aligncenter" width="650"]<a href="https://www.earth.com/wp-content/uploads/2019/08/dinosaur.jpg"><img class="wp-image-1876185" src="https://www.earth.com/wp-content/uploads/2019/08/dinosaur.jpg" alt="" width="650" height="377" /></a> Micro-CT scan of Ngwevu intloko skull, Image Credit: Kimberley Chapelle/Wits University[/caption]

“The specimen has been in the collections in Johannesburg for about 30 years, and lots of other scientists have already looked at it,” said Professor Paul Barrett, an author of the study. “But they all thought that it was simply an odd example of Massospondylus.” 

Massospondylus specimens have been found all over Southern Africa. 

In this study, the researchers were lucky in that they were able to work with a nearly complete specimen. The skull of the dinosaur, in particular, was incredibly well-preserved. 

“In order to be certain that a fossil belongs to a new species, it is crucial to rule out the possibility that it is a younger or older version of an already existing species,” said Chapelle. “Luckily, the most common South African dinosaur Massospondylus has specimens ranging from embryo to adult. Based on this, we were able to rule out age as a possible explanation for the differences we observed in the specimen now named Ngwevu intloko.”

Ngwevu intloko would have measured nearly ten feet long from tail to snout and had a long neck typical of sauropodomorphs.

“This new species is interesting, because we thought previously that there was really only one type of sauropodomorph living in South Africa at this time,” said Professor Barrett. “We now know there were actually six or seven of these dinosaurs in this area, as well as variety of other dinosaurs from less common groups. It means that their ecology was much more complex than we used to think.” 

The study was published in the journal <a href="https://peerj.com/articles/7240/">PeerJ. </a>

--

By <a href="mailto:kayvandette@gmail.com">Kay Vandette,</a> <a href="https://www.earth.com/">Earth.com</a> Staff Writer 

Main Image Credit: Kimberley Chapelle/Wits University

New species of dinosaur was ‘hiding in plain sight’ in South Africa

A fossil specimen that was sitting in storage for the...

The recent rise of anti-vaxxers and flat Earthers, along with politicians who despite scientific evidence proving the realities of climate change, have many wondering if public trust in scientists is on the decline.

Americans continue to put their <a href="https://www.earth.com/news/people-trust-scientists/">trust in scientific research</a>, but political divides persist when it comes to the role that scientists should play in informing public policy. 

A new poll conducted by the <a href="https://www.pewresearch.org/">Pew Research Center</a> shows that trust and confidence in scientists in the US is on the rise.

In fact, Americans have as much faith in scientists as they do in the military, according to the survey. Scientists are viewed as more reliable than the media and even elected officials. 

Republicans and Democrats differ in the amount of trust they place in scientists, especially in terms of environmental studies and conservation. 

4,464 adults took part in the survey in January 2019. The poll asked questions about trust in scientists, how often scientists can be counted on to perform a job competently, and if scientists present findings fairly and accurately. 

86 percent of the participants reported a “fair amount” of confidence in scientists to act in the public interest. 

Democrats were more likely to admit having a “great deal” of confidence in scientists compared to Republicans. 

[caption id="attachment_1876182" align="aligncenter" width="632"]<a href="https://www.earth.com/wp-content/uploads/2019/08/study1.jpg"><img class="size-full wp-image-1876182" src="https://www.earth.com/wp-content/uploads/2019/08/study1.jpg" alt="" width="632" height="801" /></a> Image Credit: Pew Center[/caption]

When it came to how much influence scientific experts should have in policy decisions, Democrats were more likely to put their trust in an expert and want scientists involved in policy debates. 

56 percent of Republicans, on the other hand, said that scientists should be kept out of policy debates. 

“The Center’s new survey highlights the degree to which the public values scientific expertise and how those perceptions are sometimes shaped by the crosscurrents of politics as well as familiarity with scientists and their work,” the Pew Research Center’s <a href="https://www.pewresearch.org/science/2019/08/02/trust-and-mistrust-in-americans-views-of-scientific-experts/">study authors wrote</a>. 

More specifically, it shines a spotlight on trust and potential sources of mistrust connected with scientists who work in three fields: medicine, nutrition and the environment. 

Even though trust in scientists is increasing, most of the survey responders had misgivings about transparency and accountability. Only 2 in 10 Americans say that scientists are open about conflicts of interest. 

--

By <a href="mailto:kayvandette@gmail.com">Kay Vandette</a>,<a href="https://www.earth.com/"> Earth.com </a>Staff Writer 

Paid for by <a href="http://earth.com">Earth.com</a>

Main Image Credit: Shutterstock/Matej Kastelic

Poll: Public trust in scientists is on the rise, but political divides continue

The recent rise of anti-vaxxers and flat Earthers, along with...

Rogue waves are real but don’t confuse them with tsunamis. Legends of the monstrous dangers of the ocean have been common since humans first took to the sea. Historical maps showed sea monsters, the ‘edge’ of the world, and uncharted regions simply marked “here be dragons.” 

Among stories of the Kraken, Akkorokamui, and other <a href="https://www.forbes.com/sites/duncanmadden/2018/11/16/fantastic-cryptids-and-where-to-find-them/">cryptids</a> were stories of immense waves, capable of destroying the largest of ships. Until the last few decades, scientists believed these sightings were nothing more than myths. Rogue waves are real but don’t confuse them with tsunamis

Digital observations from deep-sea oil drilling platforms tell a story that is far harder to refute. 

Wave sensors have observed huge waves suddenly appearing, <a href="https://www.surfertoday.com/surfing/what-is-a-rogue-wave">two to three times higher</a> than the “<a href="https://www.nationalgeographic.org/news/rogue-waves/">significant wave height</a>”1 of the surrounding waves. These are called rogue waves and they have been measured up to nearly 26 meters (85 feet). This is equivalent to a 6 story building, and it is suspected that they can reach even greater heights.
<h3>Rogue Waves are NOT Tsunamis</h3>
Rogue waves sound very similar to tsunamis. They are both massive, fast and destructive ocean waves. However, unlike tsunamis, rogue waves appear in the open ocean. Tsunamis, on the other hand, are seismic waves that travel beneath the surface of the ocean. As they approach the coast, they are forced above the surface by the shallower water. Rogue waves are sudden walls of water that spring up in the ocean. They look more like a cliff of water than a wave.Rogue waves are real, but don’t confuse them with tsunamis

These rogue waves are walls of water that shoot to incredible heights unpredictably. Ships that encounter them have little or no time to act. Even if they did, there is very little that could be done. The scale of these waves can dwarf even the largest of modern ships, far exceeding any obstacle they are designed to survive.
<h3>How Science Came to Accept Rogue Waves</h3>
Oceanographers and mechanical engineers long believed that waves on this scale would only occur once every 10,000 years. The many stories and legends of these waves were discounted as impossible. 

In <a href="http://www.bbc.com/earth/story/20170510-terrifying-20m-tall-rogue-waves-are-actually-real">December of 1978</a>, the München, a German cargo ship sent out a mayday message. The ship was searched for extensively. Despite the efforts, neither the boat nor any of the 27 passengers were ever found. However, lifeboats originally suspended 20m up were recovered with clear signs of an extreme force, despite having never been lowered. This event was just an early clue to the reality of these waves.

The observation that proved the existence of rogue waves once and for all was made on New Year's Day, 1995. The Draupner oil platform, located in the North Sea between the UK and Norway, was hit by a storm system. All workers were inside when the laser-based sensors on the platform recorded a wave measuring 26 meters (85 feet.)

This wave has been named <a href="https://www.sciencealert.com/lab-experiments-recreate-a-devastating-freak-wave-for-the-first-time-and-it-s-beautiful">the Draupner wave</a> and is still the tallest directly measured rogue wave. More significant than the height of the wave was the fact that it was 2.5 times taller than the significant wave height1. The fact that this is possible proved that extreme waves can occur suddenly amongst normal storm waves. The scientific evidence was in, rogue waves are real.
<h3>The Science of Rogue Waves</h3>
Rogue waves are extremely difficult to study. They appear suddenly and disappear soon afterward. They only occur in the open ocean, which is one of the most <a href="https://www.earth.com/video/unraveling-the-mysteries-of-the-ocean/">remote and inaccessible</a> parts of our planet. Those who do encounter them tend to fare poorly, and can’t report back what they saw. Rogue waves are an active area of research. We have a lot to learn about what causes rogue waves. However, we do know <a href="https://oceanservice.noaa.gov/facts/roguewaves.html">two ways in which rogue waves form</a>.
<h3>Constructive Interference</h3>
Swells traveling across the ocean at different speeds and directions can combine. When the crest of two or more of these waves overlap, they can form brief but massive waves.
<h3>Focusing Wave Energy</h3>
During storms, waves can form moving in the opposite direction. When this occurs the waves can interact to form massive rogue waves.
<h3>How Are Rogue Waves Possible?</h3>
Rogue waves were assumed to be impossible because <a href="http://www.bbc.com/earth/story/20170510-terrifying-20m-tall-rogue-waves-are-actually-real">it was believed that ocean waves interacted through a linear process</a>. This would mean waves could never get higher than the sum of the wave heights involved. Instead, rogue waves seem to follow different rules. 

In reality, rogue waves are described using math created for quantum mechanical processes. 

Math describing rogue waves use the Schrödinger equation, which is a quantum “wave function2.” This equation and other complex mathematical tools have been used to describe how rogue waves can occur in nature. These equations describe how waves can “steal” energy from each other.

There is still a lot of <a href="https://mashable.com/article/what-are-rogue-waves/">debate over the physical mechanisms behind rogue waves</a>. <a href="https://www.cambridge.org/core/services/aop-cambridge-core/content/view/65EA3294DAFD97A50C8046140B45F759/S0022112018008868a.pdf/laboratory_recreation_of_the_draupner_wave_and_the_role_of_breaking_in_crossing_seas.pdf">Lab experiments</a> have demonstrated different conditions in which these waves could occur.
<h3>Where do Rogue Waves Occur?</h3>
Rogue waves are more common in some areas of the ocean. <a href="https://www.earth.com/image/south-africa-turbulent-waters/">The coast of South Africa</a>, the North Sea and other areas have more frequent rogue waves. However, rogue waves are still rare, even in these areas.
<h3>Rogue Waves in History</h3>
You have likely seen the classic Japanese woodblock print “The Great Wave off Kanagawa” (featured above). This depicts a large wave barreling toward three boats with Mt. Fuji in the background. It was painted in the 1830s by the Japanese ukiyo-e painter Katsushika Hokusai. It has become an iconic image of a <a href="http://www.earth.com/news/asteroid-dinosaurs-global-tsunami/">tsunami</a>, but it is <a href="https://www.livescience.com/64567-famous-great-freak-wave-recreated.html">now thought to actually depict a rogue wave</a>.

Many of the mysterious lost ships of history may have been destroyed by rogue waves. The <a href="https://www.esa.int/">European Space Agency</a> (ESA) estimated that <a href="https://www.seattletimes.com/nation-world/rogue-waves-batter-many-ships-from-cruise-liners-to-tankers/">as many as 200 supertankers and container ships</a> have been sunk by rogue waves in the past 2 decades.

The reality of rogue waves reminds us just how much more there is to learn about our planet. The incredible power of nature should never be underestimated. It is easy to think humanity has taken control over nature in the modern world. However, our planet still holds many surprising (and sometimes terrifying) secrets. 

Unforeseen realities can have extreme consequences. Our rapidly changing climate is much like a rogue wave. Interactions previous generations didn’t understand are now catching up with us. Unless we take immediate action, we may <a href="https://www.earth.com/news/5-years-mitigate-climate-change/">soon be faced by disasters</a> so large and sudden that there is no chance to avoid them.

Learn more about rogue waves <a href="https://www.youtube.com/watch?v=2ylOpbW1H-I">here</a>.

Notes:
<ol>
 	<li style="font-weight: 400;">The significant wave height is defined as the average of the highest one-third of waves observed over a given time period. </li>
 	<li style="font-weight: 400;">In quantum mechanics, these waves describe the probability of finding a subatomic particle. These “<a href="https://www.dictionary.com/browse/probability-wave">probability waves</a>” interact in non-linear ways, similar to how rogue waves are created. This is related to wave-particle duality and the classic <a href="https://www.popularmechanics.com/science/a22280/double-slit-experiment-even-weirder/">double-slit experiment</a>. The fact that the equations used to describe something so seemingly abstract can be applied to real-world systems is fascinating.</li>
</ol>
--

By <a href="mailto:writing@caseyhofford.com">Casey Hofford</a>, <a href="http://earth.com">Earth.com</a> Contributing Writer

Image Credit: Katsushika Hokusai

Rogue waves are real but don’t confuse them with tsunamis

Rogue waves are real but don’t confuse them with tsunamis....

Visual depictions may be the perfect tool to turn more attention to science. The all-American hamburger does not contain one single ingredient that originated in America, according to research by Colin Khoury of the <a href="https://ciat.cgiar.org/">International Center for Tropical Agriculture</a> (CIAT). Khoury has also studied the origins of other foods to find that pizza is not all that Italian and pad thai is not entirely Thai.

To reach the largest possible audience with his news about the <a href="http://www.earth.com/news/reason-looking-food-hungry/">hamburger</a>, Khoury teamed up with a graphic designer to map out the origins of the ingredients in an attractive way. The project turned out to be a success, and the scientist is now encouraging other experts to embrace graphic design as a serious asset in science communication efforts.

"Visual depictions of scientific findings aren't a new thing. In fact, people have been making them for hundreds of years, and especially since scientific journals started to publish," said Khoury. "But new technologies, new audiences, and new ways to communicate are making high-quality, sophisticated graphics ever more important, and collaborations with skilled professionals are the most productive way to create them."

To investigate the effectiveness of scientist-artist collaborations, Khoury and his team paired six research laboratories that work on food and agricultural challenges with graphic designers and media content creators. The scientists tackled the food origins research, as well as more complex studies ranging from pollinators and biodiversity threats to modern plant breeding.

[caption id="attachment_1876136" align="aligncenter" width="650"]<a href="https://www.earth.com/wp-content/uploads/2019/08/hamburger.jpg"><img class="wp-image-1876136" src="https://www.earth.com/wp-content/uploads/2019/08/hamburger.jpg" alt="" width="650" height="325" /></a> Image Credit: Álvaro Valiño, Kelsey Nowakowski and Colin Khoury[/caption]

While it was very challenging for the scientists to break down complex concepts into clear and accessible messages, the process helped to push their work forward. For example, the experts often discovered that there were details that had not been sufficiently studied.

"Seeing the science through the eyes of a graphic artist challenged my thought process on how to reduce complex mechanisms to a more accessible form," said Michael Gore, a researcher at Cornell University.

The researchers and designers collectively identified a number of steps to make these partnerships a more common component of scientific research. They suggest that graphic art professionals can create and expand networks and businesses. 

"If a picture is worth a thousand words, a science-based infographic is worth at least a million," said Ari Novy, president of the San Diego Botanic Garden.

The research was first presented at this year's annual meeting of the American Association for the Advancement of Science (AAAS).

The study is published in the journal <a href="https://www.nature.com/commsbio">Communications Biology</a>.

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Main Image Credit: Shutterstock/SoulGIE

Visual depictions may be the perfect tool to turn more attention to science

Visual depictions may be the perfect tool to turn more...

Ocean warming ‘surprises’ are becoming more common. A new study from the <a href="https://www.gmri.org/">Gulf of Maine Research Institute</a> shows that unusually high ocean temperature spikes are becoming more common across the globe. Warming events like <a href="http://www.earth.com/news/marine-heatwaves-common-intense/">marine heatwaves</a> are disrupting ocean ecosystems and those who depend on them for their livelihood.

The study, published in the journal <a href="https://www.pnas.org/">Proceedings of the National Academy of Sciences</a> (PNAS), analyzed the temperatures and surprise warming events of 65 large marine ecosystems throughout 1854 through 2018. The frequency of these surprise temperatures were defined as an annual mean temperature that is two standard deviations above the mean of the previous three decades.

The team saw these surprises occur in regions including the Arctic, North Atlantic, eastern Pacific, and off the coast of Australia. These warming events also occurred at nearly double the rate the scientists expected.

[caption id="attachment_1876113" align="aligncenter" width="650"]<a href="https://www.earth.com/wp-content/uploads/2019/08/regions.png"><img class="wp-image-1876113" src="https://www.earth.com/wp-content/uploads/2019/08/regions.png" alt="" width="650" height="306" /></a> Image Credit: Gulf of Maine Research Institute[/caption]

"Across the 65 ecosystems we examined, we expected about six or seven of them would experience these 'surprises' each year," said study leader Dr. Andrew Pershing, Chief Scientific Officer at the Gulf of Maine Research Institute. "Instead, we've seen an average of 12 ecosystems experiencing these warming events each year over the past seven years, including a high of 23 'surprises' in 2016."

These surprises have altered the ecosystems in many marine environments. New warm-water species are replacing cold-water species in natural communities, and because of the rapid rate of the warming, many species cannot keep up and therefore biomass and diversity is suffering.

Using an economic model, the research team compared two different community decision making strategies — forward-looking decisions based on climate trends versus the results of decisions made only on historical experiences. The consensus was that forward-looking decisions are much better during the increase of warming temperatures. In fact, this decision framework should be put to work right now.

"We are entering a world where history is an unreliable guide for decision making," said Dr. Pershing. "In a rapidly changing world, betting that trends will continue is a much better strategy."

--

By <a href="mailto:oliviagharvey24@gmail.com">Olivia Harvey</a>, <a href="http://earth.com">Earth.com</a> Staff Writer

Paid for by <a href="http://earth.com">Earth.com</a>

Main Image Credit: Shutterstock/Oskari Porkka

Ocean warming ‘surprises’ are becoming more common

Ocean warming ‘surprises’ are becoming more common. A new study...

Space radiation may cause memory and learning impairment among astronauts. When people are exposed to radiation, they may not notice any consequences immediately, but even low-level exposure increases the risk of health issues over time. For example, previous studies which tracked groups such as atomic bomb survivors and radiation industry workers found that their risk of developing cancer increased concurrently with their level of exposure.

According to <a href="https://www.nasa.gov/">NASA</a>, space radiation beyond low Earth orbit can put <a href="http://www.earth.com/news/exercising-astronauts-avoid-fainting/">astronauts</a> at risk of radiation sickness and increase their lifetime risk of cancer. A new study published by the <a href="https://www.sfn.org/">Society for Neuroscience</a> has demonstrated that the chronic levels of radiation in deep space may also be responsible for significant central nervous system effects.

The researchers found that after mice were exposed to low-dose radiation for several months, the animals suffered from neural and behavioral impairments. The study results emphasize the urgent need for safety measures to protect the brain during deep space missions, which is particularly relevant as astronauts prepare to travel to Mars.

Radiation is known to disrupt signaling and other processes in the brain, but these findings were based on short-term, higher dose-rate exposures of radiation that do not accurately represent the conditions in space.

To investigate the potential impact of deep space travel on the nervous system, a team led by Charles Limoli at <a href="https://uci.edu/">UC Irvine</a> exposed mice to chronic, low-dose radiation for six months. This exposure was found to impair cellular signaling in the hippocampus and prefrontal cortex, which caused learning and memory impairment. The mice also displayed behaviors associated with increased anxiety, suggesting that the amygdala had also been affected by radiation. 

As a result of their work, the researchers predict that approximately one in five astronauts will experience anxiety-like behavior and one in three will experience certain levels of memory impairment during a deep space mission. Furthermore, the astronauts may struggle with decision-making.

The study is published in the journal <a href="https://www.eneuro.org/">eNeuro</a>.

--

By <a href="http://csexton@earth">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Image Credit: Shutterstock/Vadim Sadovski

Space radiation may cause memory and learning impairment among astronauts

Space radiation may cause memory and learning impairment among astronauts....

Brain flexibility can help infant stroke victims learn language. People usually think of the two sides of the <a href="http://www.earth.com/news/blocking-dopamine-receptors-cocaine/">brain</a> as having uniquely different functions. We often think of the left side of the brain as being responsible for controlling the right side of the body and handling matters of logic and math, while the right side of the brain controls the left side of the body and handles creative function. 

But a new study, which analyzed four-year-old children who have experienced damage to their brain’s left side during development, has revealed that the brain’s right hemisphere can take over language functions in the wake of left-side damage.

The study, conducted by the <a href="https://www.sfn.org/">Society for Neuroscience</a>, proves that the brain’s abilities and functions are flexible in response to early-development injury.

The Society’s Clément François from the University of Barcelona compared brains and language skills of healthy children to those in children who experienced left-hemisphere strokes in infancy. Brain flexibility can help infant stroke victims learn language

By using magnetic resonance imaging, François and his colleagues saw that the arcuate fasciculus, which is a white fiber bundle that links language-processing brain areas, was greater in volume in the right hemisphere and lower in volume in the left hemisphere in patients that experienced stroke. Those children with the largest right hemisphere volume performed best on language tests.

The research was published in the journal <a href="https://www.eneuro.org/">eNeuro</a>.

--

By <a href="mailto:oliviagharvey24@gmail.com">Olivia Harvey</a>, <a href="http://earth.com">Earth.com</a> Staff Writer

Image Credit: Shutterstock/adike

Brain flexibility can help infant stroke victims learn language

Brain flexibility can help infant stroke victims learn language. People...

Plant fossils reveal temperatures in North America during the Cretaceous Period. A team of paleontologists led by <a href="https://www.mcgill.ca/">McGill University</a> uncovered fossil plants in eastern Canada that have produced the first quantifiable evidence of the region's climate during the <a href="http://www.earth.com/news/new-millipede-species-cretaceous-period/">Cretaceous period</a>. 

Combined with specimens collected in previous expeditions, the newly discovered fossilized remains are giving experts unprecedented insight into a time when dinosaurs still dominated the planet.

The McGill team discovered the ancient plant samples last August in a remote area of Labrador. Some of the remains represent species that have never been found in this region before. Plant fossils reveal temperatures in North America during the Cretaceous Period

In the late 1950s, paleontologists theorized that the Cretaceous climate of Quebec and Labrador was far warmer than it is today based on fossilized leaves and insects. The current study has now confirmed this theory based on the <a href="http://clamp.ibcas.ac.cn/CLAMP_seminar.pdf">Climate Leaf Analysis Multivariate Program</a> (CLAMP), which is used to predict a variety of climate statistics for a given fossil flora. CLAMP measures variables such as temperature and precipitation based on the shape and size of tree leaves. 

Under the supervision of Professor Hans Larsson, graduate student and study first author Alexandre Demers-Potvin analyzed the plant fossils and determined that eastern Canada had a warm, temperate, and humid climate during the middle of the Cretaceous period.

The experts found that the average annual temperature in this part of Canada was 59 degrees Fahrenheit, with an average summer temperature of over 68 degrees Fahrenheit. 

According to Demers-Potvin, the new work provides insight into how the climate of eastern Canada evolved over time, which will be useful information for studying climate change today. 

"The fossils from the Redmond mine show that an area that is now covered by boreal forest and tundra used to be covered in warm temperate forests in the middle of the Cretaceous, one of our planet's 'hothouse' episodes," said Demers-Potvin. "These are new pieces of evidence that can help improve projections of the global average temperature against global CO2 levels throughout the Earth's history."

The study is published in the journal <a href="https://onlinelibrary.wiley.com/journal/14754983">Palaeontology</a>.

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Image Credit: Alexandre Demers-Potvin

Plant fossils reveal temperatures in North America

Plant fossils reveal temperatures in North America during the Cretaceous...

On July 25, scientists got a shock from space: an asteroid the size of a football field passed by Earth in a near miss. Dubbed 2019 OK, the asteroid came just over 40,000 miles from the planet – closer than the Moon.

And scientists didn’t see it coming until the day before it whizzed by.

Enter cutting edge new telescopes like <a href="http://www.esa.int/ESA_Multimedia/Images/2016/10/Flyeye_telescope">Flyeye</a>. The <a href="https://www.esa.int/">European Space Agency</a> has been developing the automated telescope to avoid situations like last month’s near miss. Flyeye would be one of a network of telescopes programmed to recognize and flag potential near-Earth objects like asteroids and large meteors. Then, scientists could review any flagged items for potential dangers to the planet’s surface.

The asteroid was first spotted by the <a href="http://www.observatorio-phoenix.org/t_proj/Sonear/sonear.htm">Southern Observatory for Near-Earth Asteroids Research</a> just a day before it passed Earth. The ESA watched 2019 OK using the <a href="http://lfvn.astronomer.ru/main/english.htm">International Scientific Optical Network</a> just before its near miss.

“With the ISON observations we were able to determine the distance of the close approach incredibly accurately,” Dr. Marco Micheli of ESA’s <a href="https://www.esa.int/Our_Activities/Space_Safety/About_the_Near-Earth_Object_Coordination_Centre">Near-Earth Object Coordination Centre</a> said.

The scientists plan to use recordings of the asteroid’s approach in programming automated telescopes in the future.

"This 'un-recognition' of an asteroid, despite it being photographed, will be used to test the software going into ESA's upcoming asteroid-hunting telescope, the Flyeye,” said Dr. Rüdiger Jehn, ESA's Head of Planetary Defence.

This isn’t the first near miss researchers have been focused on recently. Scientists have worried that an asteroid could <a href="https://www.earth.com/news/asteroid-2006-qv89-earth/">collide with the planet</a> in September – though those fears may be unfounded. Another asteroid is on course to pass by Earth with a <a href="https://www.earth.com/news/asteroid-pass-earth-visible/">mere 19,000 miles to spare</a>. It will be so close, it will be visible to the naked eye, researchers said.

It has people so worried that many feel an <a href="https://www.earth.com/news/americans-asteroid-protection-lunar-base/">asteroid defense system</a> is more important than a planned lunar base.

The ESA hopes that its system of Flyeye telescopes will help spot dangerous asteroids in the future. The agency is also working on <a href="http://www.esa.int/Our_Activities/Space_Safety/Hera">Hera</a>, a project that would aim to redirect dangerous near-Earth objects.

—

By Kyla Cathey, <a href="https://www.earth.com/">Earth.com</a> staff writer

Asteroid's surprise near miss has scientists eyeing the sky

On July 25, scientists got a shock from space: an...

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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

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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

[sendtonews key="3upvlAaHgO-2256633-12187" 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> 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



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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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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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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

[sendtonews key="e4ZG0Jawp3-2374785-12187" type="single"] Astronomers at Johns Hopkins University have created...

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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

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

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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

[sendtonews key="oL4FnPTGCV-2384527-12187" type="single"] Today's Video of the Day from the...

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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

[sendtonews key="f8fukm28Vz-2491833-12187" type="single"] Today's Video of the Day from NASA...

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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

[sendtonews key="0879czfG3k-1785905-12187" type="single"] Today’s Video of the Day from NASA...

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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

[sendtonews key="6HyfrAJTBI-1831843-12187" type="single"] Today’s Video of the Day from the...

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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

[sendtonews key="0dEcERCq61-2283382-12187" type="single"] Today’s Video of the Day from Stowers...

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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"

[sendtonews key="QIoVYJqRBi-2434608-12187" type="single"] Today's Video of the Day from NASA...

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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...