Marriage or long-term relationships often seem like the societal norm. However, a growing number of people choose to remain single for life. While singlehood offers independence and freedom, it may also pose challenges, especially in later years.&nbsp;



A new study published in the journal Psychological Science takes a deep look at people who have stayed single their whole lives, revealing important differences in both their life satisfaction and personality traits compared to those in relationships.



The study was led by Dr. Julia Stern, a senior researcher at the University of Bremen in Germany.



Her team analyzed data from over 77,000 Europeans aged 50 and above, making it the first research of its kind to examine lifelong singles across different cultures.



<h2 class="wp-block-heading" id="h-single-life-more-than-just-relationship-status">Single life: More than just relationship status</h2>



The research team didn't just look at who was currently single. They dug deeper, creating different categories: people who never lived with a partner, those who never married, and those who never had any long-term relationship.



This detailed approach revealed something fascinating - people who had never been in a serious relationship showed lower scores in extraversion, openness, and life satisfaction compared to those who were currently single but had previous <a href="https://www.earth.com/news/people-with-power-are-more-likely-to-cheat-on-their-partners/" target="_blank" rel="noreferrer noopener">relationship experience</a>.



<h2 class="wp-block-heading" id="h-cultural-context-matters">Cultural context matters</h2>



Your location as a single person can influence your life satisfaction. The study revealed that in countries with higher marriage rates, especially in southern Europe, single individuals tended to feel <a href="https://www.earth.com/news/social-rejection-teaches-us-valuable-lessons-about-relationships/" target="_blank" rel="noreferrer noopener">less satisfied</a> with their lives.



This suggests that societal expectations around marriage might intensify feelings of isolation or inadequacy for singles in these regions. 



Surprisingly, the level of religiosity in a country didn’t significantly impact the life satisfaction of single people. This indicates that cultural norms about relationships play a more prominent role than religious influences in shaping their well-being.



<h2 class="wp-block-heading" id="h-age-and-gender-of-singles">Age and gender of singles</h2>



Here's a silver lining for older singles - the research found that they tend to be happier with their single status compared to middle-aged singles. 



Women who were single also reported higher life satisfaction than single men. 



Dr. Stern suggests that older singles might find more peace with their status once they're past the age where their peers are actively starting families and <a href="https://www.earth.com/news/making-a-partner-jealous-hurts-relationships-much-more-often-than-it-helps/" target="_blank" rel="noreferrer noopener">getting married</a>.



<h2 class="wp-block-heading" id="h-personality-differences-in-single-people">Personality differences in single people</h2>



One big question emerges: do certain personality types lead people to stay single, or does being single shape personality? The evidence points to the former. 



"It's more likely you have these selection effects: For example, people who are more extraverted are more likely to enter a relationship," explained Dr. Stern.



However, she emphasizes that these are average effects and don't apply to everyone - you'll find plenty of single extroverts and partnered introverts out there.



<h2 class="wp-block-heading" id="h-single-people-report-lower-life-satisfaction">Single people report lower life satisfaction</h2>



The study's findings highlight significant health implications. 



Research has shown that life satisfaction and personality traits like extraversion and conscientiousness strongly influence health outcomes and even mortality. Individuals with higher levels of these traits tend to experience better physical and <a href="https://www.earth.com/news/self-compassion-enhances-relationship-satisfaction/" target="_blank" rel="noreferrer noopener">mental health</a>.



As people age and their reliance on support networks grows, these connections become even more critical. 



<h2 class="wp-block-heading" id="h-addressing-the-needs-of-older-singles">Addressing the needs of older singles</h2>



Lifelong singles, who often score lower on these traits and life satisfaction, may face heightened health risks. This emphasizes the importance of addressing their specific needs to promote healthier aging and overall well-being.



"When there are differences, they might be especially important in elderly people who face more health issues and financial issues," noted Dr. Stern. "They need more help, and the help is usually the partner."



This research highlights the need for better support systems for single people, especially as they age. Dr. Stern advocates for developing new programs that consider personality differences and help older singles connect with like-minded individuals. 



"If they have people who care for them or look out for them regularly, this might help," said Dr. Stern.



<h2 class="wp-block-heading" id="h-supporting-single-people">Supporting single people</h2>



As more people choose to live single lives, society needs to adapt. This research doesn't just highlight differences between singles and partnered individuals - it points to the urgent need for support systems that work for everyone, regardless of relationship status.



The findings call for creative solutions that go beyond the traditional family-centered approach to care and support. 



Whether through community programs, social networks, or healthcare systems, we need to ensure that single individuals have access to the same level of support and care that partnered people often receive through their relationships.



This research from <a href="https://www.uni-bremen.de/en/" target="_blank" rel="noreferrer noopener">University of Bremen</a> marks an important step toward understanding and addressing the unique challenges faced by lifelong singles. As our society continues to <a href="https://www.earth.com/news/where-does-love-live-in-the-brain/" target="_blank" rel="noreferrer noopener">evolve</a>, these insights could help shape more inclusive support systems that serve everyone, regardless of their relationship status.



The study is published in the journal <a href="https://journals.sagepub.com/doi/10.1177/09567976241286865" target="_blank" rel="noreferrer noopener">Psychological Science</a>.



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Why do some people stay single their whole lives?

Marriage or long-term relationships often seem like the societal norm. However, a growing number of people choose to remain single for life. While singlehood offers independence and freedom, it may also pose challenges, especially in later years.&nbsp; A new study published in the journal Psychological Science takes a deep look at people who have stayed single their whole lives, revealing important differences in both their life satisfaction and personality traits compared to those in relationships. The study was led by Dr. Julia Stern, a senior researcher at...

An online study has revealed that people who consistently solve crossword puzzles have improved brain function later in life. People who regularly engage in crossword puzzles and other word challenges performed better on tasks that evaluated memory, attention, and reasoning.

Researchers at the <a href="http://medicine.exeter.ac.uk/">University of Exeter Medical School</a> and Kings College collected data from more than 17,000 healthy people aged 50 and over. The team asked participants how frequently they completed word puzzles such as crosswords. The individuals were given tests to assess their grammatical reasoning speed and the accuracy of their short term <a href="https://www.earth.com/news/cannabis-slow-memory-loss/">memory</a>.

The results of the study indicate that people who frequently solve word puzzles have brain function equivalent to ten years younger than their age.

Keith Wesnes is a professor of Cognitive Neuroscience at the University of Exeter Medical School. 

"We found direct relationships between the frequency of word puzzle use and the speed and accuracy of performance on nine cognitive tasks assessing a range of aspects of function including attention, reasoning and memory,” explained Wesnes. “Performance was consistently better in those who reported engaging in puzzles, and generally improved incrementally with the frequency of puzzle use.” 

The researchers used the PROTECT online platform for the study. This platform makes it possible for researchers to conduct large-scale evaluations without the need for lab work. There are currently more than 22,000 healthy people aged between 50 and 96 registered as participants. PROTECT is a 10-year study that follows up with individuals annually in an effort to achieve a better understanding of cognitive function in this age range. 

The research was presented this year at the Alzheimer's Association International Conference. The study is one of the largest of its kind to examine core features of brain function. Clive Ballard is a professor of Age-Related Diseases at the University of Exeter Medical School. 

"We know that many of the factors involved in dementia are preventable,” said Ballard. “It is essential that we find out what lifestyle factors really make a difference to helping people maintain healthy brains to stop the soaring rise of the disease. We can't yet say that crosswords give you a sharper brain - the next step is to assess whether encouraging people to start playing word games regularly could actually improve their brain function."

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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

Source: <a href="http://medicine.exeter.ac.uk/">University of Exeter Medical School</a>

Daily crossword puzzles improve brain function later in life

An online study has revealed that people who consistently solve...

Consuming artificial sweeteners such as aspartame, sucralose and stevia may be linked to obesity, diabetes, high blood pressure, and heart disease, according to a new study.

Researchers from the <a href="http://umanitoba.ca/">University of Manitoba</a> reviewed 37 studies that followed more than 400,000 people for an average of 10 years. Seven of the studies were randomized controlled trials, involving 1,003 people followed for an average of six months.

Artificial sweeteners had no consistent effect on weight loss, the trials showed. The longer observational studies did however show a link between artificial sweeteners and higher risks of weight gain, obesity, high blood pressure, diabetes, <a href="https://www.earth.com/news/regeneration-human-heart/">heart disease</a> and an array of other health issues.

"Despite the fact that millions of individuals routinely consume artificial sweeteners, relatively few patients have been included in clinical trials of these products," said study author Dr. Ryan Zarychanski, assistant professor at the University of Manitoba. "We found that data from clinical trials do not clearly support the intended benefits of artificial sweeteners for weight management." 

Until the long-term effects of artificial sweeteners are documented, “caution is warranted,” said Dr. Meghan Azad, assistant professor at the University of Manitoba and lead author of the study.

Her team is now launching a new study focused on how artificial sweetener consumption by pregnant women may influence weight gain, metabolism, and gut bacteria in their infants.

The new study was published in the <a href="http://www.cmaj.ca/">Canadian Medical Association Journal</a>.

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By: <a href="mailto:dbeasley@earth.com">David Beasley, </a><a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source: <a href="http://www.cmaj.ca/">Canadian Medical Association Journal</a>

Artificial sweeteners linked to a variety of health issues

Consuming artificial sweeteners such as aspartame, sucralose and stevia may...

The United Kingdom’s looming Brexit will become official in less than two years. With it, a wide array of sweeping changes will need to be made for everything from immigration to healthcare. But one of the larger issues that has been less talked about so far is the Brexit’s impact on food.

British consumers spend over £200 billion on food per year, with roughly one-third of that food coming from the European Union. A new report led by three of the UK’s leading food and agriculture policy analysts shows how severely this impact may affect this industry.

The report – published by the Science Policy and Research Unit at the <a href="http://www.sussex.ac.uk/">University of Sussex</a> – finds that this Brexit will create serious risks to consumer interests, public health, businesses, and workers in the food sector. Furthermore, they report that this is no current government vision for <a href="https://www.earth.com/news/diesel-fuel-pollution-heart-damage/">UK</a> food or agriculture.

“In the EU, UK consumers and public health have benefited from EU-wide safety standards, without which there will be a risk of the UK having less safe and nutritious products,” explains Erik Millstone, a professor at the <a href="http://www.sussex.ac.uk/">University of Sussex</a>.

The researchers looked at available industry and government data, as well as policies and literature on a number of issues including production, farming, employment, quality, safety standards, and the environment. 

“The UK’s food system already faces unprecedented challenges on environment and jobs - we see real dangers that these are already being dislocated by Brexit uncertainties,” says Terry Marsden of <a href="https://www.cardiff.ac.uk/">Cardiff University</a>.

With the government keeping quiet over these possible problems, the study found that the public has almost no idea that their next meal could be at risk. 

“At least the UK entered World War Two with emergency plans. No-one has warned the public that a Food Brexit carries real risks of disruption to sources, prices and quality,” says Tim Lang of the <a href="http://www.london.ac.uk/">University of London</a>. “There is solid evidence about vulnerabilities ranging from diet-related ill-health to ecosystems stress.”

Moving forward, it will take a massive effort by the government and industry in the UK to make sure that all of these issues are accounted for once the Brexit becomes official. If not, the entire country might find itself in a perilous position.

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By <a href="mailto:certz@earth.com">Connor Ertz</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source: <a href="http://www.sussex.ac.uk/">University of Sussex</a>

Brexit could severely impact UK’s food and agriculture

The United Kingdom’s looming Brexit will become official in less...

For people with dementia living in care homes, life can deteriorate quickly. Caregivers often do everything they can to improve the lives and health of the people in their care, relying on current knowledge of how to best handle this destructive condition.

Recent findings from a large-scale trial led by the <a href="http://www.exeter.ac.uk/">University of Exeter</a>, <a href="https://www.kcl.ac.uk/index.aspx">King’s College London</a>, and <a href="http://www.oxfordhealth.nhs.uk/">Oxford Health NHS Foundation Trust</a>, now shows that providing person-centered activities and simply one hour a week of social interaction for dementia patients can improve their quality of life and reduce agitation.

The Improving Wellbeing and Health for People with Dementia (WHELD) trial was the largest ever non-pharmacological randomized control trial in people with dementia living in care homes. It assessed over 800 people with dementia in almost 70 care homes in the UK. At each home, two “care staff champions” were trained to take simple actions such as talking to residents about their interests and decisions involving their own care. When these measures were combined with one hour per week of social interaction, it significantly improved quality of life.

“Taking a person-centered approach is about really getting to know the resident as an individual – knowing their interests and talking with them while you provide all aspects of care. It can make a massive difference to the person themselves and their carers,” says Dr. Jane Fossey of the Oxford Health NHS Foundation Trust.

Beyond the health improvements it provided, this approach also ended up decreasing costs compared to standard care. The next steps involve an effort to bring the program to 28,000 care homes in the <a href="https://www.earth.com/news/toxin-taxes-diesel-drivers/">UK</a> – which could benefit the lives of the 300,000 people living with dementia in these homes.

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By <a href="mailto:certz@earth.com">Connor Ertz</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source: <a href="http://www.exeter.ac.uk/">University of Exeter</a>

One hour of social activity drastically helps those with dementia

For people with dementia living in care homes, life can...

Engineering researchers are simulating the 6.7 magnitude 1994 Northridge earthquake in California to help them design wooden buildings that can survive large earthquakes with little or no repair.

“Designing buildings that are safe even during large earthquakes is hugely important. We are doing that – and we are going further,” said <a href="http://inside.mines.edu/CEE-home">Colorado School of Mines Civil and Environmental Engineering</a> assistant professor Shiling Pei, lead researcher on the project, which is funded by the <a href="https://www.nsf.gov/">National Science Foundation</a>. “We are working to minimize the amount of time buildings are out of service after large earthquakes. We are also focused on cutting the costs required to repair them.”

Researchers are conducting the research at an experimental test site at the <a href="https://ucsd.edu/">University of California San Diego</a>. 

A 22-foot-tall structure will be put through a tremor simulating the 6.7 magnitude 1994 Northridge earthquake, but for twice as long. 

Researchers are particularly interested in a system that allows the building to rock in response to an <a href="https://www.earth.com/news/strike-slip-faults-form-earthquakes/">earthquake</a> and how the walls and floors interact during shaking.

“We have tested the rocking walls by themselves in the lab, but as structural engineers, we know that the system is not equal to the sum of its parts,” Pei said. “There are interactions between the parts. We are finally going to be able to get data on how the different components function as a system during strong earthquakes.”

Researchers are using a “rocking wall system,” with vertical mass timber walls that are connected to the foundation by post-tensioned rods that run up through the floor and special U-shaped steel energy dissipaters. The rods allow the walls to rock during an earthquake and snap back into their original upright position, minimizing structural damage.

A collection of universities is collaborating on the project along with several industrial partners.

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By: <a href="mailto:dbeasley@earth.com">David Beasley, </a><a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source: <a href="http://inside.mines.edu/CEE-home">Colorado School of Mines Civil and Environmental Engineering</a>

Researchers simulate 1994 California quake to test new buildings

Engineering researchers are simulating the 6.7 magnitude 1994 Northridge earthquake...

Experts have concocted a three-course dinner that is specifically designed for optimal sleep. Dr Rachel Edwards-Stuart and Lily Soutter identified foods that are known to improve sleep and used them to create the ultimate dinnertime meal. They incorporated complementary ingredients that would not counteract the sleep-enhancing properties of the food.  

Dr. Edwards-Stuart researched the flavor and texture of foods for the menu at the <a href="https://www.nottingham.ac.uk/">University of Nottingham</a>, while Soutter meticulously developed the menu in the lab of mattress company SIMBA Sleep.

The first ingredient selected for the menu was kiwi. Previous research from Taiwan's Taipei Medical University established that the high antioxidant and serotonin levels found in kiwi help improve both quality and quantity of <a href="https://www.earth.com/news/sleep-purpose-in-life/">sleep</a>. Chicken was chosen due to the fact that it is one of the best sources of tryptophan, an essential building block of the sleep hormone melatonin. The experts picked walnuts for the meal because research from the University of Texas established they are also a good source of melatonin.

The first course of the dinner paired kiwi with mackerel, which is rich in omega 3 and fatty acids. A study from Oxford University has shown that omega 3 fat stimulates the release of the sleep hormone melatonin. After considering shared aroma compounds, the team added spinach and olives to the dish. Spinach was also chosen because it is high in magnesium and levels of this mineral rise and fall with our sleep cycles.

The main course consisted of magnesium-rich pumpkin seeds with chicken. This course also featured a sweet potato - another excellent source of tryptophan.  

The team wanted a dessert that did not have a lot of sugar, and chose honey to sweeten the dessert because it does not make blood sugar levels spike. Melon and apple juice were used as a source of fiber which can help stabilize blood sugar levels at night.

“Although many of us understand the importance of nutrition during the day, few of us are aware that certain foods could be sabotaging our sleep,” explained Soutter. 

She added that “these recipes are simple enough to replicate or inspire your meal choices at home.” 

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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

Source: <a href="https://www.nottingham.ac.uk/">University of Nottingham</a>

The perfect meal to help you sleep better at night

Experts have concocted a three-course dinner that is specifically designed...

Researchers from the <a href="https://www.unl.edu/">University of Nebraska</a> have evaluated the potential damage that would result from a nuclear strike. The team estimated the impact of a single nuclear warhead would cause extreme climate change with drought and famine severe enough to kill millions of people.

The Cold War persisted for five decades with a military strategy between the United States and the Soviet Union of mutually assured destruction. In other words, the superpowers understood that both the attacker and defender would be completely destroyed in the event of a nuclear attack. This strategy, however, is no longer effective with countries such as North Korea. The Korean People’s Army recently tested an intercontinental ballistic missile capable of striking Alaska as well as cities in Asia and the Middle East. 

While the international community is concerned over North Korea’s nuclear program, other countries are adopting their own doctrines that could be cause for concern as well. Russia, for example, may consider the use of nuclear force to end future wars and the United States may also deliberate use of a limited nuclear strike as a defense strategy.

A study led by biological systems engineer Adam Liska has determined that even a limited nuclear strike would have global consequences. Liska’s research team included experts in climate modeling and climate change. The study focused on 19 types of weapons in the possession of the five major nuclear powers. The team estimated how many bombs in each category of weapons would be able to cause a “nuclear drought.”

"The question is not if a nuclear drought can occur, but what factors increase its probability of occurring and what actions can be taken to mitigate the potentially devastating global impacts?" said Liska. 

The researchers determined that the United States, Russia and <a href="https://www.earth.com/news/chinas-loess-plateau-was-formed-by-wind-3/">China</a> each have weapons, including intercontinental ballistic missiles and land-based missiles, that could initiate a nuclear drought with the detonation of fewer than five bombs. China could trigger a nuclear drought with the launch of a single one of its 20 land-based missiles.

Oglesby explained that the black ash created by a nuclear explosion would cool temperatures at the Earth's surface, resulting in less temperature difference between the lower and upper atmosphere. Rainfall would drastically decline and thrust large regions across the globe into drought.

"If the ash reaches the stratosphere, many months could pass before it dissipates," Oglesby said.

Previous research has identified nuclear blasts capable of igniting a developed area roughly the size of Los Angeles. An event of this magnitude would shoot 5.5 million tons of ash and soot into the stratosphere. Rainfall could decrease by as much as 80 percent and temperatures would be the coldest they have been in hundreds of years. It would take at least five years for growing seasons to recover. 

"We're losing our memory of the Cold War and we're losing our memory of how important it is to get this right," said co-author Tyler White. "Even a conflict that doesn't involve the United States can impact us and people around the world."

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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

Source: <a href="https://www.unl.edu/">University of Nebraska</a>

Nuclear strike would cause severe climate change, drought, famine

Researchers from the University of Nebraska have evaluated the potential...

Researchers using high-resolution X-ray technology have been able to document the revolution of thinning seed coats, a major marker of domestication of seeds by humans.

"Seed coat thickness is a great indicator of domestication, as thinner coats will mean faster germination of a seed when it is watered," said Dorian Fuller of <a href="https://www.ucl.ac.uk/">University College London</a>, co-author of the paper.

The researchers found evidence of seed coat thinning between 2,000 BC and 1,200 BC in the legume horsegram, a bean commonly eaten in southern <a href="https://www.earth.com/news/air-pollution-crisis-india/">India</a>.

Using the high-resolution X-ray computed tomography technique (HRXCT) at the UK's synchrotron facility, <a href="http://www.diamond.ac.uk/">Diamond Light Source</a>, allowed researchers to measure thickness without breaking and destroying archaeological specimens.

"Being able to look at the seed coat thickness without breaking the sample is possible by other methods, but you can only look at a spot on the seed," said Charlene Murphy, co-author on the paper.

Researchers analysed 12 samples, putting the seeds into two distinct groups: thicker (wild type) seed coats, with averages thicknesses above 17 micrometres, and thinner (more domesticated) seed coats between 10 and 15 micrometers.

The findings show the potential for HRXCT to be used to look at a variety of domesticated grains and pulses, such as peas, the authors said.

"We're continuing to work with Diamond to look at other interesting archaeological seeds, and how they've become domesticated," said Fuller. "Peas are a great example of this - wild peas are ejected from their pods naturally, but domesticated peas only leave the pod when the cultivator removes them - a quite symbiotic relationship."

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By: <a href="mailto:dbeasley@earth.com">David Beasley, </a><a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source: <a href="http://www.diamond.ac.uk/">Diamond Light Source</a>

Humans domesticated plant seeds thousands of years ago

Researchers using high-resolution X-ray technology have been able to document...

The habenular region of the brain is prompted by various internal and external activities and communicates with other organs in the body about how to respond. A new study reveals the role the habenular system plays in helping zebrafish regain control after becoming “frozen” with fear.

The habenular region is located in the forebrain and broadcasts information throughout the body. This set of structures is found in all vertebrate animals and outputs messages to regions of the midbrain that are responsible for the release of dopamine and serotonin. These chemicals regulate emotional responses and assist in motor control.

Researchers from the<a href="https://carnegiescience.edu/"> Carnegie Institute for Science</a> set out to observe the habenular regions of the brains of larval <a href="https://www.earth.com/news/zebrafish-spinal-discs-repair/">zebrafish</a> while they responded to fear. Erik Duboué and Marnie Halpern led the team in the analysis.

The study used mild electric shock to make the zebrafish freeze in fear. The scientists noted that the fish relied on neurons in the left habenula to quickly resume normal swimming activity. The study showed that the function of the left and right habenulae are different when it comes to the experience and recovery from fear.

"The link between the asymmetrical nature of brain function and responses to fear or anxiety may be a general feature of the vertebrate brain," explained Halpern. 

The study, published in Current Biology, shows that the habenulae are critical in relaying messages within the brain. Previous research has associated the habenular system with pain and reward processing, anxiety, modulating sleep cycles, and more. This system has also been linked to depression and addiction.

One theory that has emerged from the study is that positive and negative stimuli are not processed the same by the left and right sides of the brain. Duboué will conduct further research to test this theory. 

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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

Source: <a href="https://carnegiescience.edu/">Carnegie Institute for Science</a>

How the brain overcomes fear and picks a course of action

The habenular region of the brain is prompted by various...

<a href="https://www.earth.com/news/effective-steps-battle-climate-change/">Climate change</a> is a current and gradually increasing problem for our planet, which is likely not news to you. But some of the consequences of climate change may catch you by surprise. When the air gets warmer, its density decreases. Air with less density (also known as “thin” air) makes it harder for airplanes to generate lift from their wings. Because of this, rising global temperatures due to climate change may actually make it harder for airplanes to take off in the not-to-distant future.

A new study in the journal <a href="https://link.springer.com/journal/10584">Climate Change</a> presents a global analysis that looked at how rising temperatures affect airplanes and airports. Researchers estimate that if our current emissions continue at this rate, fuel capacities and payload weights on airplanes may have to be reduced by as much as 4 percent on particularly hot days. For the average aircraft (roughly 160 seats), a 4 percent weight reduction is equal to about 12 to 13 passengers. Such temperature-related issues could cause major delays and travel headaches for airports and passengers in many countries.

Airplanes with lower temperature tolerances will also be at a greater risk for these problems, and airports located in hotter parts of the world with shorter runways or at high elevations will also see these issues exacerbated. For example, researches estimate that on LaGuardia’s short runways, a Boeing 737-800 may have to offload weight half of the time during New York’s hottest days.

“As the world gets more connected and aviation grows, there may be substantial potential for cascading effects, economic and otherwise,” says study coauthor Radley Horton, a climatologist at Columbia University.

Average global temperatures have risen nearly 1 degree Centigrade since 1980, and may already be having an effect on certain areas of the planet. Just this past June, American Airlines canceled more than 40 flights out of Phoenix when temperatures hit highs of almost 120 degrees. These high temperatures made it dangerous for smaller regional jets to take off.

Besides simple safety issues, this also negatively impacts the airline industry, which generally operates on a razor-thin margin to begin with. Modifications to airplane engines and body designs could help mitigate the heat problem, but they would come at great cost. This study just shows another example of how climate change has consequences that reach far across the planet and touch almost every part of our lives.

--

By <a href="mailto:certz@earth.com">Connor Ertz</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source: <a href="http://www.earthinstitute.columbia.edu/">The Earth Institute at Columbia University</a>

Heat waves caused by climate change could disrupt airplanes

Climate change is a current and gradually increasing problem for...

A new study has found that the heavier mothers were during pregnancy, the higher the risk of behavioral problems in their sons.

However, the study, published in <a href="http://www.ajpmonline.org/">American Journal of Preventive Medicine</a>, did not find the same effects in <a href="https://www.earth.com/news/males-females-depression-differently/">girls</a>.

"The study results suggest that early intervention with women to attain healthy weights before they become pregnant is critical to their health and the health of their future children," said senior investigator Barbara Abrams, of the <a href="http://berkeley.edu/">University of California, Berkeley</a>.

According to estimates by the Centers for Disease Control and Prevention, 15 out of every 100 women of childbearing age are severely obese.

Recent research has linked high maternal weight, before and during pregnancy, to child behavior and particularly to problems such as attention deficit hyperactivity disorder. There may also be a link with problems such as depression. These problems can have negative effects on school performance and relationships with others.

Researchers used the U.S. National Longitudinal Survey of Youth 1979 to investigate whether maternal pre-pregnancy body-mass index (BMI) is associated with behavioral problems among school-age children. 

Boys whose mothers entered pregnancy obese were at higher risk for behavior problems at ages 9-11 years, the study said. Boys whose mothers were underweight pre-pregnancy also showed higher risk for behavior problems. The study did not show the same effects in girls, and there were no differences for race.

"It is the first study to document gender differences, and one of a handful of studies to show that pre-pregnancy underweight, in addition to obesity, may be problematic," said investigator Juliana Deardorff, of UC Berkeley. "Future research should examine whether the gender differences reported here for ages 9-11 years persist into adolescence or shift as children get older."

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By: <a href="mailto:dbeasley@earth.com">David Beasley, </a><a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source: <a href="https://www.elsevier.com/">Elsevier</a>

Study: Behavioral problems more likely in boys with obese mothers

A new study has found that the heavier mothers were...

Psilocybin, the active ingredient in psychedelic mushrooms, may be more effective than traditional psychiatric therapies for depression, anxiety, and substance abuse disorders, a new study found.

Researchers at <a href="http://www.tu.edu/">Touro University California</a> reviewed seven published psilocybin clinical trials and concluded that psilocybin-assisted psychotherapy has strong potential in improving patient outcomes, particularly for those who haven’t responded to other treatments.

Patients can also show improvement after just a few six-hour “medicated” therapy sessions and a few weeks of follow-up therapy, the review found.

The studies all investigated the use of psilocybin in strictly controlled clinical conditions under the supervision of therapists and other health professionals.

“Additional studies are required to determine if psilocybin will be deemed safe and effective enough to gain FDA approval,” the researchers wrote. “While psilocybin’s clinical utility still remains uncertain, it should be investigated further to determine if this novel treatment paradigm has the potential to dramatically improve outcomes in patients with psychiatric disorders.”

As psychological and psychiatric researchers have gained greater access to brain imaging technologies, they are forming new hypotheses about the physiological roots of psychological disorders. One is the idea that major depression is rooted in atypical connections between regions of the brain that aren’t usually connected, which may in turn underlie the fixation and rumination on thoughts that characterizes depression.

Recent studies have found that psilocybin from mushrooms significantly affects connectivity among different <a href="https://www.earth.com/news/brain-training-no-affect-decision/">brain</a> regions. 

In most of the United States psilocybin is still classified as a Schedule I substance, meaning it has “a high potential for abuse, no currently accepted medical use in treatment in the United States, and a lack of accepted safety for use under medical supervision,” according to the<a href="https://www.dea.gov/index.shtml"> U.S.  Drug Enforcement Administration</a>.

Whether the DEA will take the most recent scientific data into account, remains to be seen, the authors said.

The study is published in the <a href="http://www.tandfonline.com/toc/ujpd20/current">Journal of Psychoactive Drugs</a>.

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By: <a href="mailto:dbeasley@earth.com">David Beasley, </a><a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source: <a href="http://www.tu.edu/">Touro University California</a>

Ingredient in magic mushrooms could help psychiatric therapies

Psilocybin, the active ingredient in psychedelic mushrooms, may be more...

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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

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



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



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



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



Video/Image Credit: ESA&nbsp;



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

Lake Trasimeno in Central Italy

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



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



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



Video Credit: American Chemical Society&nbsp;



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



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.

Detecting mercury contamination with the tap of a finger

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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



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 does salt makes things taste better?

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



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



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



Video/ Image Credit: ESA



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



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.

Santiago, Chile in South America

[sendtonews key="JRaP49ISmm-2357509-12187" type="single"] Today’s Video of the Day from the...

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

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



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



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



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



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



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



Video Credit: Johns Hopkins&nbsp;



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



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

Interactive map of the universe includes 200,000 galaxies

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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 



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.

Lesotho: Africa's "Kingdom in the Sky"

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



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



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



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



Video Credit: ESA&nbsp;



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



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

The city of Dublin on Ireland's east coast

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



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



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



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



Video/ Image Credit: ESA



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



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

The province of Zaragoza in northeast Spain

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



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



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



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



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



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



Video &amp; Image Credit: ESA



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



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

The Pyrenees Mountains in southwest Europe

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Earth,Like,Exoplanet,3d,Render

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



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



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



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



Video Credit: NASA Goddard



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



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



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

Two distant planets may be "water worlds"

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



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



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



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



Video Credit: NASA Goddard&nbsp;



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



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

Satellites reveal how Earth's systems are interconnected

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

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



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



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



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



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



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



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



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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



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.

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 a new map of Mars that is providing insight into the planet’s watery past. The map also reveals where future missions could safely land on Mars.&nbsp;



The map has been created over the last decade using observations of water-rich rocks and mineral deposits. The images were captured by ESA’s Mars Express and NASA’s Mars Reconnaissance Orbiter.



"A big surprise is the prevalence of these minerals, with the map revealing hundreds of thousands of water-affected locations in the oldest parts of the planet," says ESA. "The new data will help answer exciting questions about Mars’ climate history, whether water was globally persistent or confined to short, intense episodes, and whether the conditions were ever suitable for life."



"Specifically, the map shows the locations and abundances of aqueous minerals. These are from rocks that have been chemically altered by the action of water in the past, and have typically been transformed into clays and salts."



According to John Carter of the Institut d’Astrophysique Spatiale (IAS), our collective understanding of Mars has been oversimplified. He explained that planetary scientists have tended to think that only a few types of clay minerals on Mars were created during its wet period, then as the water gradually dried up, salts were produced across the planet.



The new map shows that the composition of Mars is much more complicated than what we thought. For example, while many salts formed after Martian clays, there are some salts that are presumed to be older than some of the clays.&nbsp;



“The evolution from lots of water to no water is not as clear cut as we thought, the water didn’t just stop overnight. We see a huge diversity of geological contexts, so that no one process or simple timeline can explain the evolution of the mineralogy of Mars. That’s the first result of our study. The second is that if you exclude life processes on Earth, Mars exhibits a diversity of mineralogy in geological settings just as Earth does,” said Carter.



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.

The history of Mars is much more complex than we thought

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Today's Video of the Day from the <a href="https://www.stowers.org/">Stowers Institute for Medical Research</a> describes how cavefish adapted to a sedentary lifestyle over tens of thousands of years. 



The experts found that the muscle metabolism of cavefish has been genetically reprogrammed over time. As a result, the animals have experienced major changes in their morphology and behavior. Despite these changes, however, the cavefish remain healthy and fit.



The research may provide new clues about the evolutionary consequences of prolonged physical inactivity in humans.&nbsp;



“It’s no surprise that people are moving less and less as technology has advanced,” said Rohner. “With cavefish, we have a unique system where we can study what might happen if people remained couch potatoes over very, very long periods of time.”



Video Credit: Stowers Institute for Medical Research



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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.

Cavefish are healthy despite their sedentary lifestyle

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Today’s Video of the Day from <a href="https://earthobservatory.nasa.gov/">NASA Earth Observatory</a> some of the most incredible waves in the world, as seen by Landsat satellites.



"With more than 370,000 miles of coastline on Earth, there are plenty of places where epic waves build up, curl over, and hurtle toward the shore.- much to the thrill of surfers," says NASA. "There are some places where these waves are so magnificent that they can be seen from space."



"With the broad perspective of satellites, we can see how these iconic waves develop into the world’s tallest, longest, fastest, and heaviest."



Video Credit: NASA Earth Observatory&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 capture the world's biggest and fastest waves

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> describes why satellite images and measurements of our planet have become "essential to our survival, offering a new outlook of our world."&nbsp;



Rising sea levels pose one of the biggest societal threats associated with climate change. According to ESA, satellite altimeter missions such as Copernicus Sentinel-6 are essential in monitoring global and regional changes in sea level.



"Unbeknown to many, the island of Crete, Greece, plays an important role in the Copernicus satellite altimetry constellation and on an international stage," reports ESA.



"Satellite altimetry data have to be continuously monitored at the ESA’s Permanent Facility for Altimetry Calibration where different techniques have pioneered the use of transponders to provide the best measurements to validate satellite altimeters in space soon after launch."



Dr. Craig Donlon explains that, by understanding planet Earth through satellite measurements, we are able to find evidence of change.&nbsp;



Video Credit: European Space Agency&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

Satellites have become essential to our survival

[sendtonews key="761m2QQvR1-2035772-12187" type="single"] Today’s Video of the Day from the...