Many people have experienced waking up in a good mood in the morning, only to feel drained by the end of the day. A new study confirms that this pattern is not just a personal feeling - it is a widespread trend. 



According to the research, mental health and wellbeing scores peak in the morning and decline as the day progresses, reaching their lowest point around midnight.



This study provides one of the most detailed analyses of how mental health fluctuates across the day. It also examines whether these variations depend on the day of the week, the season, or <a href="https://www.earth.com/news/mental-health-and-the-internet-who-benefits-and-who-suffers/" target="_blank" rel="noreferrer noopener">broader social factors</a>. 



The findings offer valuable insights into daily mental health patterns, with implications for both public health and personal well-being.



<h2 class="wp-block-heading" id="h-mental-health-is-better-in-the-morning">Mental health is better in the morning</h2>



Researchers found a strong connection between time of day and mental health. In the morning, people report feeling the happiest, most satisfied with life, and least lonely. These positive feelings gradually decline throughout the day. 



By midnight, mental health scores reach their lowest levels, with increased reports of depressive and anxiety symptoms.



This pattern suggests that mental health is not static but changes over short periods. While previous studies have explored long-term shifts in <a href="https://www.earth.com/news/mental-health-the-hidden-casualty-of-climate-change/" target="_blank" rel="noreferrer noopener">mental well-being</a>, fewer have examined how people’s mood and well-being fluctuate throughout a single day.



This research fills that gap by analyzing mental health trends across different times, days, and seasons.



<h2 class="wp-block-heading" id="h-daily-mood-patterns">Daily mood patterns </h2>



The research team used data from the <a href="https://www.ucl.ac.uk" target="_blank" rel="noreferrer noopener">University College London</a> COVID-19 Social Study, which tracked mental health patterns from March 2020 to March 2022. 



The study included responses from over 49,000 participants, with a majority being women and degree-educated individuals. Since certain demographics were overrepresented, the data was weighted to reflect a more balanced population.



Participants answered direct questions about their happiness, <a href="https://www.earth.com/news/doomscrolling-is-silently-ruining-our-mental-health/" target="_blank" rel="noreferrer noopener">life satisfaction</a>, and sense of purpose. These responses were recorded with timestamps, allowing researchers to analyze mood variations across different hours. 



The experts also collected information about each participant’s age, gender, employment status, education level, and health conditions.



<h2 class="wp-block-heading" id="h-do-some-days-feel-better-than-others">Do some days feel better than others?</h2>



Beyond daily fluctuations, the study examined whether mental health varied across different days of the week. The results showed that well-being scores were generally higher on Mondays and Fridays compared to Sundays.



Interestingly, happiness levels were also relatively high on Tuesdays, while Sundays had some of the lowest well-being scores.



Loneliness, however, remained fairly stable across all days. The study found no clear evidence that people felt more isolated on specific days of the week. 



The researchers noted that these findings challenge common assumptions, such as the idea that weekends are always better for mental health than weekdays.



<h2 class="wp-block-heading" id="h-seasonal-effects-on-mental-health">Seasonal effects on mental health</h2>



The research also confirmed that mental health shifts with the seasons. Compared to winter, people generally reported lower levels of depression and anxiety during other times of the year. 



Happiness, life satisfaction, and a sense of purpose were all highest in the summer months.



Despite these seasonal variations, one surprising finding was that the daily pattern of mood remained consistent. Regardless of the season, people still felt best in the morning and worst at night. 



This suggests that while seasonal factors like daylight hours influence mood, they do not override the body’s internal clock.



<h2 class="wp-block-heading" id="h-role-of-the-body-clock">Role of the body clock</h2>



The researchers suggest that the daily pattern in mental health could be explained by biological rhythms. Specifically, they point to the role of cortisol, a hormone linked to stress and energy regulation.



“For example, cortisol peaks shortly after waking and reaches its lowest levels around bedtime. However, it is important to acknowledge the differences between weekends and weekdays."



This means that while natural biological processes help regulate mood, external factors such as work schedules and daily routines also play a role. The fact that mental health fluctuates differently on weekends suggests that social and behavioral factors contribute to these changes.



<h2 class="wp-block-heading" id="h-mental-health-improved-after-2020">Mental health improved after 2020</h2>



Another key finding from the study was that overall mental health improved from 2020 onward. Since the research period covered the COVID-19 pandemic, this suggests that mental health gradually recovered after the initial crisis. 



However, the study does not establish a direct cause-and-effect relationship, so other factors could also explain this improvement.



The researchers acknowledge some limitations in their study. Since participants completed the questionnaires voluntarily, the timing of their responses might have influenced the results.



The study also did not account for variables such as sleep patterns, geographical location, or daily weather conditions - all of which could affect <a href="https://www.earth.com/news/mental-health-crisis-half-of-the-worlds-population-will-be-affected-by-age-75/" target="_blank" rel="noreferrer noopener">mood</a>.



<h2 class="wp-block-heading" id="h-implications-for-public-health">Implications for public health</h2>



Despite these limitations, the study highlights important trends that could influence mental health services. Understanding when people are most vulnerable can help improve support systems.



“Other drivers of the seasonal variation in [mental health and wellbeing] could include weather (temperature, precipitation, humidity) as well as various sociocultural cycles, including cultural holidays, norms, and employment patterns,” noted the study authors.



This research suggests that mental health services should consider these time-based trends when <a href="https://www.earth.com/news/surprising-mental-health-benefits-of-living-near-green-spaces/" target="_blank" rel="noreferrer noopener">planning resources</a>. If people tend to struggle the most around midnight, mid-week, and in winter, then additional support should be available during these times.



“Finally, in relation to public health, our findings indicate that people’s [mental health and wellbeing] tends to be lowest around midnight, mid-week, and in winter. This should be considered when planning service and resource provision," wrote the researchers.



<h2 class="wp-block-heading" id="h-recognizing-daily-mood-patterns">Recognizing daily mood patterns </h2>



This study reinforces the idea that mental health is constantly shifting throughout the day, with mornings generally bringing the best <a href="https://www.earth.com/news/millions-of-americans-have-lost-years-of-time-to-poor-mental-health/" target="_blank" rel="noreferrer noopener">mood</a>.



The findings highlight the importance of recognizing daily patterns in mood, rather than viewing mental health as a fixed state. While mornings seem to offer the best outlook, nights may present greater challenges.



These insights could encourage individuals to be more mindful of their mental health at different times of the day. They also provide valuable information for healthcare providers, policymakers, and researchers working to improve mental well-being on a broader scale.



The study is published in the journal <a href="https://mentalhealth.bmj.com/content/28/1/e301418" target="_blank" rel="noreferrer noopener">BMJ Mental Health</a>.



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Overall, people feel better about life in the morning

Many people have experienced waking up in a good mood in the morning, only to feel drained by the end of the day. A new study confirms that this pattern is not just a personal feeling - it is a widespread trend. According to the research, mental health and wellbeing scores peak in the morning and decline as the day progresses, reaching their lowest point around midnight. This study provides one of the most detailed analyses of how mental health fluctuates across the day. It also examines...

A new study led by scientists at the <a href="http://www.iiasa.ac.at/">International Institute for Applied Systems Analysis (IIASA)</a> has found that investment into low carbon solutions will have to increase dramatically for the world to have a chance at limiting global warming to two degrees Celsius, the target established at the <a href="https://www.earth.com/news/paris-agreement-climate-goals/">Paris Agreement</a>.

According to the researchers, the transformation of the global energy system will only require a modest increase in overall investments, but a major shift away from fossil fuels and toward renewable energy is mandatory. 

At the Paris Agreement in 2015, many countries defined Nationally Determined Contributions (NDCs), or plans to reduce their greenhouse gas emissions. The study finds that current incentives, including the NDCs, will not be sufficient to produce the “pronounced change” that is needed to successfully reshape the energy system.

Investments in low carbon energy and energy efficiency will need to exceed investments in fossil fuels as early as 2025 and then grow far higher to limit global warming to two degrees Celsius. The researchers identified shocking “investment gaps” between what is now spent on carbon alternatives and what must be invested in order to meet the world’s climate target.

To meet the NDCs alone, an additional US$130 billion of investment will be needed by 2030. To achieve the 2°C target, the investment gap is US$320 billion, and for 1.5°C it is US$480 billion.

IIASA researcher David McCollum is the study’s lead author.

“We know that limiting global temperatures to well below 2°C demands that renewables and efficiency scale up rapidly, but few studies have calculated the energy investment needs for a fundamental system transformation, at least not with an eye toward 1.5°C and using multiple scientific modelling frameworks running side-by-side,” explained McCollum.

The six tools used by the researchers to model different scenarios, which are known as integrated assessment models, are often used by experts to evaluate the costs, potential, and consequences of different energy, climate, and human development conditions in the future.

“This is the first scientific study to conduct a systematic and detailed analysis of the energy investment needs for futures including the very ambitious target of 1.5°C,” said IIASA Energy Program Director Keywan Riahi. “We find that a 1.5C investment strategy will be quite different from one to reach 2°C. Particularly investments into energy transmission and storage as well as for renewables and efficiency would need to be scaled up more rapidly for reaching 1.5°C.”

“On the other hand, both targets (1.5°C and 2°C) will mean that upstream investments into coal extraction and unabated fossil power generation without carbon capture and storage will need to scale down rapidly to avoid further lock-in of the system into fossil fuel infrastructure.”

The researchers are hopeful that their findings will be used worldwide by analysts and policymakers working in the areas of energy, climate change, and sustainability.

Study co-author Elmar Kriegler is the vice chair of the research domain “Sustainable Solutions” at the Potsdam Institute for Climate Impact Research (PIK).

"It's important for  professionals in the finance sector to be aware how much more investment in low carbon solutions is needed if the world is to meet the Paris targets,” said Kriegler. “The NDC pledges are a step in the right direction, though much deeper changes in the energy investment portfolio are clearly necessary.”

The research is published in the journal <a href="https://www.nature.com/nenergy">Nature Energy</a>.

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Major shift in energy investment needed to meet climate goals

A new study led by scientists at the International Institute...

New research published by the <a href="http://www.apa.org/">American Psychological Association</a> has revealed that hovering over children constantly, also known as helicopter parenting, can negatively affect a child’s emotional well-being and behavior. According to the study, <a href="https://www.earth.com/news/fruit-and-veggie-prescriptions-found-to-improve-childrens-diets/">children</a> need space to learn and develop on their own.

Dr. Nicole B. Perry from the <a href="https://twin-cities.umn.edu/">University of Minnesota</a> is the study’s lead author.

“Our research showed that children with helicopter parents may be less able to deal with the challenging demands of growing up, especially with navigating the complex school environment,” said Dr. Perry. “Children who cannot regulate their emotions and behavior effectively are more likely to act out in the classroom, to have a harder time making friends and to struggle in school.”

According to Dr. Perry, all children need to learn how to manage their own emotions and behavior, and helicopter parenting limits the opportunities for them to do so.

Children need parents who are sensitive to their needs, recognize when they can manage a situation on their own, and who will help them to understand their emotions when necessary. This style of parenting allows children to develop the ability to handle challenging situations on their own, and also leads to better mental and physical health, improved social relationships, and academic success. 

For an investigation into social and emotional development, the researchers followed 422 children for eight years, assessing them at ages 2, 5, and 10. The team used  observations of parent-child interactions, during which they asked the children and parents to play as they normally would at home.

The researchers also used teacher-reported responses and self-reports from the 10-year-olds for their analysis.


“Helicopter parenting behavior we saw included parents constantly guiding their child by telling him or her what to play with, how to play with a toy, how to clean up after playtime and being too strict or demanding,” said Dr. Perry. “The kids reacted in a variety of ways. Some became defiant, others were apathetic and some showed frustration.”

The researchers found that over-controlling parenting when a child was 2 was associated with poorer emotional and behavioral regulation at age 5. Children who were better able to control their emotions at age 5, however, were found to be more productive in school and have better social skills by age 10.

“Children who developed the ability to effectively calm themselves during distressing situations and to conduct themselves appropriately had an easier time adjusting to the increasingly difficult demands of preadolescent school environments,” said Dr. Perry. “Our findings underscore the importance of educating often well-intentioned parents about supporting children's autonomy with handling emotional challenges.”

Dr. Perry recommends for parents to help children understand their emotions and the behaviors which may result from them. Parents should also help their children identify positive coping strategies, such as listening to music, coloring, deep breathing, or retreating to a quiet space.

“Parents can also set good examples for their children by using positive coping strategies to manage their own emotions and behavior when upset.”

The study is published in the journal <a href="https://onlinelibrary.wiley.com/toc/10982302/current">Developmental Psychobiology </a>.

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff">Earth.com</a> Staff Writer

Parents who are too controlling may limit their kid’s potential

New research published by the American Psychological Association has revealed...

A study conducted by <a href="https://www.ohiopopulationhealthalliance.com/">The Ohio Alliance for Innovation in Population Health</a> (OAIPH) has revealed that more than 500,000 years of life expectancy were lost to opioid use in just seven years across the state of Ohio.

<a href="https://www.earth.com/news/young-adult-deaths-opioid-use/">Opioid overdose</a> continues to increase as a preventable cause of mortality, and the OAIPH set out to bring awareness to this rising epidemic on both a county and state level. 

“This data gives us a picture of the profound impact of opioid-related deaths,” said OAIPH Director Rick Hodges. “These are people in the prime of life during their most productive years. The data also tells a story about families and communities.”


The researchers used data from the Ohio Department of Health, Bureau of Vital Statistics, and the Ohio Death Certificate File to calculate the years of life lost (YLL) to opioid use from 2010-2016. Patterns of opioid-related deaths were mapped geographically and monitored over time.

Overall, 13,059 Ohioans died from opioid overdose between 2010 and 2016. Opioid overdose accounted for 519,471 YLL across these years. In 2016 alone, 140,045 YLL were attributable to opioid overdose, lowering the life expectancy of the average Ohioan by 1.1 years.

Fentanyl-related deaths have increased dramatically, jumping from 77 deaths in 2010 to 2,357 deaths in 2016. Fentanyl was the cause of 67 percent of fatal opioid poisonings in 2016, and fentanyl overdose accounted for 96,118 YLL that year alone.


“One of the most heartbreaking aspects of the opioid epidemic is the incredible loss of life as so many young people die of overdoses,” said study co-author Randy Leite. “The years of life lost data paint a picture of the greatest consequence of the epidemic - the loss of so many individuals who could have been productive parents, spouses, workers, and citizens.”

<a href="https://www.ohio.edu/">Ohio University</a> President M. Duane Nellis recently created the Opioid Task Force, which is made up of both community and staff members in an effort to elevate the impact of the region's opioid-related initiatives.

“These numbers are staggering. Ohio University has made a commitment to provide resources to help reverse the rising tide of the opioid epidemic,” said Nellis. “This study is one example of the work that we are accomplishing to meet this important priority.”

The OAIPH is a collaborative initiative formed by Ohio University's College of Health Sciences and Professions and the University of Toledo's College of Health and Human Services.
--
By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Over half a million years of life lost to opioids in Ohio

A study conducted by The Ohio Alliance for Innovation in...

According to experts at <a href="http://www.psu.edu/">Pennsylvania State University</a>, eight hours of sleep is no longer enough for us in today's high-tech world, which they say has its ways of distracting us from getting quality rest. The researchers are now recommending that we get 8.5 hours of sleep each night.

<a href="https://www.earth.com/news/sleep-loss-countrys-economy/">Sleep deprivation</a> is not only dangerous because it makes people more accident-prone and forgetful, but is very risky for our health in other ways as well. Lack of sleep has been linked to depression, anxiety, and a significantly higher risk of cancer, type 2 diabetes, and heart disease.

The researchers find that regular exposure to an enormous amount of information is keeping us stressed and on edge, whether we realize it or not. 

“With cell phones and social media, our brains are always a little on; our fight or flight response is always just a little bit activated, so there's this low level anxiety that you may not even notice, but it's there and you have to train yourself out of it,” explains study author and sleep expert Dr. Daniel Gartenberg.

“One of the main functions of sleep is to take all the information we get throughout the day and sort into what's relevant,” he says. This process, known as synaptic homeostasis, prevents the nervous system from becoming disorganized and chaotic.

“If anything, I think we need more sleep now because we are bombarded with so much information,” says Dr. Gartenberg.

Surveys show that Americans got an average of eight hours of sleep per night in the 1940s, when people did not take in nearly as much information on a daily basis. However, the average amount of sleep that Americans get today is seven hours.

“The very fact that people used to sleep that much suggests that we need to sleep that much,” says Dr. Gartenberg. 

Furthermore, just because we go to bed early enough to get in a good night's rest does not mean that we are sleeping through the night. Dr. Gartenberg has found in sleep studies that subtle noises can wake us up throughout the night. 

The professor refers to sleep, diet, and exercise as the “Big Three” that keep us healthy, but points out that “a great deal of attention is given to diet and exercise, but less importance is placed on sleep.”

After more than a decade of dedication to sleep research, Dr. Gartenberg has launched a professional sleeping coach app called the <a href="https://sonicsleepcoach.com/">Sonic Sleep Coach</a>.

“At the end of the day, there's not just the right amount of sleep, there is also getting the right quality of sleep,” explains Dr. Gartenberg.

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Modern high-tech life means we’ll need more than 8 hours of sleep

According to experts at Pennsylvania State University, eight hours of...

Night owls may be more prone to developing depression, according to a new study on genetics and sleep patterns. 

Your sleep-wake preference is what’s known as a chronotype and research has shown that sleep patterns and <a href="https://www.earth.com/news/night-owl-gene-mutation/">chronotypes are influenced by genetics</a>. 

Whether or not you prefer to get up early or stay up late can be largely determined by your genes, and previous studies have found night owls are twice as likely to suffer from depression. 

Researchers from the <a href="https://www.colorado.edu/">University of Colorado-Boulder</a> and <a href="https://www.brighamandwomens.org/research/departments/channing-division-of-network-medicine/overview">the Channing Division of Network Medicine at Brigham and Women's Hospital</a> in Boston wanted to see to what extent chronotype impacted the risk of depression in people with different sleep habits. 

The results were published in the Journal of Psychiatric Research, and the study is the largest yet to examine chronotype and mood disorders. 

Data from the <a href="https://www.hsph.harvard.edu/nutritionsource/nurses-health-study/">Nurses’ Health Study</a> was collected for the research and included information on 32,470 nurses, all of which were free from depression in 2009. 

The average age of the women included in the chronotype study was 55, and because the Nurses’ Health Study asked participants to fill out health questionnaires biennially, the researchers were able to a better picture of sleep patterns and depression. 

37 percent of the women in the recent study said they were early risers, 53 percent claimed they were intermediate risers, and 10 percent said they were evening types. 

After four years in the Nurses’ Health Study, the late chronotypes/night owls were more likely to be single, live alone, smoke, and report erratic sleep patterns. 

Early risers, on the other hand, had a 12 to 27 percent lowered risk of depression compared to those who said they were intermediate types. 

“This tells us that there might be an effect of chronotype on depression risk that is not driven by environmental and lifestyle factors,” said Céline Vetter, the study’s lead author. 

However, the study shows that chronotype only has a small impact on increasing depression risk in people. 

There are several external factors that also influence sleep patterns beyond genetics and addressing these could help reduce depression risk, according to Vetter. 

For example, limiting light exposure at night, regulating sleep schedules, getting enough sleep and exercising could all help late chronotypes develop healthier habits and lifestyles. 

“Being an early type seems to be beneficial, and you can influence how early you are,” said Vetter.  

--

By <a href="mailto:kayvandette@gmail.com">Kay Vandette</a>, <a href="https://www.earth.com/">Earth.com</a> Staff Writer

Being an early riser decreases your risk of depression

Night owls may be more prone to developing depression, according...

Many countries around the world have powerful nuclear arsenals, which has of course caused tension and worry surrounding how these weapons could be used.

While a nuclear attack would have devastating consequences for the country targeted, it would also have lasting worldwide effects.

Now, a new study has found that the use of 100 nuclear weapons would put a nation past its tipping point and kill millions, cause mass food shortages, and change the global landscape. 

While it only would take 100 weapons, there are around 15,000 nuclear weapons in the world, according to the <a href="http://www.dailymail.co.uk/sciencetech/article-5841569/Scientists-warn-best-case-scenario-nuclear-war-devastating-global-effects.html">Daily Mail</a>. The United States alone has a <a href="http://time.com/4893175/united-states-nuclear-weapons/">nuclear arsenal</a> of nearly 7,000 warheads. 

Researchers from <a href="https://www.mtu.edu/">Michigan Technological University</a> modeled the extent of damage that different nuclear attacks would cause. 

The study was published in the journal Safety, and the researchers argue that nations should have no more than 100 nuclear weapons in their arsenal rather than the thousands that some do. 

“No country should have more nuclear weapons than the number necessary for unacceptable levels of environmental blowback on the nuclear power’s own country if they were used,” the researchers told the Daily Mail. 

Three different hypothetical scenarios of nuclear attacks were investigated for the study, the launch of 7,000 weapons, 1,000 weapons, and 100 weapons. 

The environmental impacts of the different attacks were also calculated with <a href="https://www.earth.com/news/pope-warns-oil-execs-climate-change-could-destroy-civilization/">climate</a> and crop simulations in order to assess the damage to agriculture that would occur. 

An attack of 100 nuclear weapons, the best case scenario, could still kill 30 million people in a densely populated city and cause food shortages and mass starvation. 

“With 100 nuclear weapons, you still get nuclear deterrence, but avoid the probable blowback from nuclear autumn that kills your own people,” Joshua Pearce, a member of the research team told the Daily Mail. “If we use 1,000 nuclear warheads against an enemy and no one retaliates, we will see about 50 times more Americans die than did on 9/11 due to the after-effects of our own weapons.”

According to the study, a large scale attack could cause soot from the explosions to block out sunlight which would severely impact agricultural production. 

--

By <a href="mailto:kayvandette@gmail.com">Kay Vandette</a>, <a href="https://www.earth.com/">Earth.com</a> Staff Writer

Study identifies nuclear war tipping point for global devastation

Many countries around the world have powerful nuclear arsenals, which...

A new report from <a href="https://www.ippr.org/north">IPPR North</a> has found that toxic levels of <a href="https://www.earth.com/news/uk-fines-air-pollution/">air pollution</a> in Manchester are threatening human health as well as the region's economy. People living in the Greater Manchester area have an average reduced life expectancy of six months, according to the study.

At the current rate, an estimated 1.6 million life years will be lost over the next century. IPPR North Director Sarah Longlands said that the “human cost of the air pollution crisis” in Manchester cannot be overemphasized.

“People’s lives are being cut short, our children’s health is being put at risk and this is before you even consider the £1bn annual economic burden that poor quality air places on the local economy,” said Longlands.

“For too long, the debate on air pollution has been focused on London. But now for the first time, we understand the full extent of the problem in Greater Manchester. We simply cannot allow this to continue.”

According to the report, the rate of emergency hospital admissions for asthma in Central Manchester is more than double the national average. The city ranks as the second worst in England for PM10 particulate pollution, which can cause damage to the respiratory and cardiovascular systems.

Alison Cook is the Director of Policy at the British Lung Foundation.

“Air pollution is a threat to us all. Children, the elderly and people with a lung condition are the most vulnerable,” said Cook. “Breathing in dirty air is linked to lung cancer, asthma, heart disease and stroke. It can also stunt children’s lung development, leading to chronic health problems later in life.”

“Greater Manchester is one of the most polluted areas in the UK. This report provides more detail on the health impact of air pollution on the city than we’ve had before. Ambitious and concrete measures from the Mayor and central government must now follow, such as rolling out charging Clean Air Zones in the most polluted areas.”

The IPPR North report is based on research by <a href="https://www.kcl.ac.uk/">King's College London</a>.

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Manchester air pollution impacting human health and the economy

A new report from IPPR North has found that toxic...

An upcoming report from the <a href="https://www.usgs.gov/">U.S. Geological Survey</a> (USGS) warns that a region of the Eastern Seaboard will be particularly vulnerable to devastating blackouts in the event of a solar storm. 

An explosion in the Sun’s atmosphere can cause solar wind to travel at high speeds. When this intense burst of energy interacts with Earth's magnetosphere, it can trigger a geomagnetic storm. 

Beneath regions of Interstate 95 from Virginia to Maine, there is a layer of 300 million-year-old rocks that would have a dangerous reaction to a solar storm. 

The rocks would behave like a shield, bouncing solar energy from the <a href="https://www.earth.com/news/california-sunny-fire-danger/">Sun</a> back toward the Earth instead of allowing it to pass through. Such an event could cause major communication systems and power grids to fail.

According to USGS research geophysicist and study lead author Jeffrey Love, the Eastern Seaboard is at risk for blackouts not only due to its abundance of these insulating rocks, but also due to the region’s proximity to the North Pole, where intense solar activity is most likely to strike.

Prior to this study, the central United States was the main focus of solar storm risk assessments, and the threat to the Eastern Seaboard was not yet known.

A study in 2016 reported that the upper Midwest is the region that faces the highest threat from a geomagnetic storm. The researchers found that surges could be up to 100 times more powerful in northern Minnesota and Wisconsin compared to other areas of the United States.


The largest solar storm in recent history struck in 1859, when auroras could be seen across the globe. A solar storm in 2012 passed through the Earth's orbit without a direct hit on the planet.

On March 10, 1989, astronomers witnessed a powerful explosion on the sun that was followed by the release of a billion-ton cloud of gas within minutes. Three days later, the resulting geomagnetic storm tripped circuit breakers across the power grid in Quebec, leaving the entire city without electricity for over nine hours. 

A large geological shield of ancient rocks beneath the city of Quebec may be similar to those in the vicinity of Interstate 95, but this has not yet been established.

The research from the USGS will be used to develop tests to measure how resilient the nation's power grids are to solar storms, which is required by the Federal Energy Regulatory Commission.

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Major east coast cities face threat of blackout from solar storms

An upcoming report from the U.S. Geological Survey (USGS) warns...

Fish species are relocating at a pace that international fishing laws cannot keep up with, as climate change continues to warm the temperature of ocean waters. According to a new study from <a href="https://www.rutgers.edu/">Rutgers University</a>, this will cause increasing international conflict.

Study author Malin Pinsky is an assistant professor of Ecology, Evolution and Natural Resources in Rutgers-New Brunswick's School of Environmental and Biological Sciences.

“Most people may not understand that the right to harvest particular species of fish is often decided by national and regional fisheries management bodies,” said Professor Pinsky. “Those bodies have made the rules based on the notion that particular fish species live in particular waters and don't move much. Well, they're moving now because climate change is warming ocean temperatures.”

The study has demonstrated for the first time that new <a href="https://www.earth.com/news/dolphins-are-being-killed-for-use-as-bait-in-fisheries/">fisheries</a> are likely to appear in more than 70 countries all over the world as a result of global warming. Historically, a large migration of fish species has sparked disagreement among fishing communities.

Such conflict leads to overfishing and subsequently reduces the food, profit, and employment provided by fisheries. Disputes over newly-shared fisheries can also impact international relations beyond the coastline.

In a previous study, Professor Pinsky and Rutgers postdoctoral associate James Morley reported that many major commercial fish species could move their ranges hundreds of miles northward in search of colder water. This migration is already underway, and the results have been highly disruptive for fisheries.

“Consider flounder, which have already shifted their range 250 miles farther north,” said Professor Pinsky. “Federal fisheries rules have allocated many of those fish to fishers in North Carolina, and now they have to steam hundreds of extra miles to catch their flounder.”

The team pointed out examples of international disputes caused by the disruption of fisheries, including the “mackerel war” between Iceland and the European Union (EU).

Lobster fishers from the United States and Canada are clashing over the lobster fishery, which is moving north from New England to the Canadian Maritime Provinces.


The study authors explained that, while the migration of fish is inevitable with changing climate conditions, the conflicts can be avoided.

“We need international agreements for the collaborative monitoring and sharing of fisheries as they move, much as the Antarctic conservation agreement has begun to do,” said Professor Pinsky. 

“We have a chance to avoid conflict over fisheries that could escalate international tensions, threaten our food supply, and reduce profit and employment worldwide. Avoiding fisheries conflicts and overfishing ultimately provides more fish, more food and more jobs for everyone.”

The study is published in the journal <a href="http://www.sciencemag.org/">Science</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: Malin Pinsky/Rutgers University-New Brunswick

Climate change disrupting commercial fish migration and industry

Fish species are relocating at a pace that international fishing...

A new study has revealed how your stomach can act as an internal global food positioning system, and the results could help shed insight on our <a href="https://www.earth.com/news/trust-your-instincts/">gut instinct</a>.

Humans are typically pretty good at remembering what we’ve eaten, especially if the meal was exceptionally good. 

For example, if someone asked you to remember where you had the best burger of your life, you could probably tell them more than just the restaurant name. 

A new study might have an explanation for this excellent memory recall, and it has to do with a gut instinct that dates back to our ancient hunter-gatherer ancestors. 

Researchers from the <a href="https://www.usc.edu/">University of Southern California</a> conducted the study which was published in the journal Nature Communications. 

The researchers examined the vagus nerve in rats to see if there was any connection between the signals sent to an from the stomach and memory recall. 

The vagus nerve is the body’s longest nerve and it sends messages to an from the brain to the gastrointestinal-tract.

There’s a possibility that the vagus nerve also directs signals to the hippocampus, which is the part of the brain responsible for memory. 

The researchers think the roots of this gut-brain connection dates back to our ancient ancestors who would have relied on memories of abundant hunting and gathering sites. 

“When animals find and eat a meal, for instance, the vagus nerve is activated and this global positioning system is engaged,” said Scott Kanoski, a corresponding author of the study. “It would be advantageous for an animal to remember their external environment so that they could have food again.”

For the study, the researchers severed the gut-brain vagus nerve pathway in some rats to see if that impacted the rat’s  memory of its environment. 

“We saw impairments in hippocampal-dependent memory when we cut off the communication between the gut and the brain,” said Andrea Suarez, the study’s lead author. “These memory deficits were coupled with harmful neurobiological outcomes in the hippocampus.”

The results show how the vagus nerve influences memory, and the researchers say that future studies should examine if bariatric surgeries could impact memory as these surgeries, although a proven solution to weight loss, block signals to and from the stomach. 

--

By <a href="mailto:kayvandette@gmail.com">Kay Vandette</a>,<a href="https://www.earth.com/"> Earth.com</a> Staff Writer

Our gut instinct is rooted in an ancient internal food GPS system

A new study has revealed how your stomach can act...

Researchers at <a href="https://www.osu.edu/">Ohio State University</a> (OSU) are reporting that individuals with religious ties live an average of four years longer than individuals with no religious affiliation. The findings are the result of a nationwide study which was focused on over 1,000 obituaries from around the country.

“The study provides persuasive evidence that there is a relationship between religious participation and how long a person lives,” said study co-author Baldwin Way.

The experts first took into account sex and marital status, two factors that have a strong influence on lifespan, before calculating how many extra years of life corresponded with <a href="https://www.earth.com/news/internet-mix-religious-beliefs/">religious people</a>.

“Religious affiliation had nearly as strong an effect on longevity as gender does, which is a matter of years of life,” said study lead author Laura Wallace.


The four-year boost was found to be even larger in a smaller study of obituaries published in a Des Moines newspaper, where religious affiliates lived an average of 6.48 years longer.

The experts found that the increase in longevity could be partially explained by the fact that many of the individuals with religious ties were volunteers and members of social organizations. Previous research has found that an active social life is also associated with living longer.

“We found that volunteerism and involvement in social organizations only accounted for a little less than one year of the longevity boost that religious affiliation provided,” said Wallace. “There's still a lot of the benefit of religious affiliation that this can't explain.”

According to Way, another possible explanation is that the rules and norms of many religions restrict unhealthy practices such as alcohol and drug use or having sex with many partners. He said that, in addition, “many religions promote stress-reducing practices that may improve health, such as gratitude, prayer or meditation.”

The main study conducted by the team included 1,096 obituaries from 42 major cities in the United States published on newspaper websites between August 2010 and August 2011. 

The analysis revealed that individuals who had religious affiliations mentioned in their obituaries lived an average of 5.64 years longer than those who did not. After accounting for the factors of gender and marital status, the number was adjusted to 3.82 years.

The study also showed that more religious people tended to live longer than non-religious people in highly religious cities where there is a bigger focus on conformity. In some cities, on the other hand, there is a spillover effect.

“The positive health effects of religion spill over to the non-religious in some specific situations,” said Wallace. “The spillover effect only occurs in highly religious cities that aren't too concerned about everyone conforming to the same norms. In those areas, non-religious people tend to live as long as do religious people.”

The research is published in the journal <a href="http://journals.sagepub.com/home/spp">Social Psychological and Personality Science</a>.

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Religious people live longer lives, study finds

Researchers at Ohio State University (OSU) are reporting that individuals...

A 20-year study by researchers at <a href="https://www.ru.nl/english/">Radboud University</a> has revealed that stress in early childhood causes the brain to mature faster during adolescence. On the other hand, stress experienced later in life causes the <a href="https://www.earth.com/news/brains-reward-center-fat-carbs/">brain</a> to develop more slowly during teenage years.

Beginning in 1998, the team began monitoring one-year-olds and their parents. The researchers studied play sessions and interactions with parents and classmates, while conducting regular MRI scans, over the course of two decades.

The experts used the data to investigate how stress in various life stages affected the adolescent brains of the children. In particular, they examined how stress affected cerebral maturation.

During adolescence, our brain improves the connections that have been made between brain cells, developing more useful and efficient networks. This refining process was found to be accelerated as a result of stress in early life.

The researchers focused on two types of stressors - negative life events and negative influences from the social environment - in the subjects when they were 0-5 years old and 14-17 years old. These stress levels were compared to the maturation of the prefrontal cortex, amygdala, and the hippocampus.

Stress resulting from negative experiences during childhood, such as illness or divorce, was linked to faster maturation of the prefrontal cortex and amygdala in adolescence. However, stress resulting from a negative social environment during adolescence, such as low peer acceptance, was found to be associated with slower maturation of the hippocampus and another region of the prefrontal cortex. 

“Unfortunately, in this study we can't say with certainty that stress causes these effects,” explained study co-author and PhD student Anna Tyborowska. “However, based on animal studies we can hypothesize that these mechanisms are indeed causal.”


Tyborowska said that the study findings are also consistent with theories of evolutionary biology.


“From an evolutionary perspective, it is useful to mature faster if you grow up in a stressful environment. However, it also prevents the brain from adjusting to the current environment in a flexible way. In other words, the brain become ‘mature’ too soon.”

The researchers did not expect to find, however, a link between social stress later in life and slower maturation during adolescence. “What makes this interesting is that a stronger effect of stress on the brain also increases the risk of developing antisocial personality traits,” said Tyborowska.

The researchers continue to follow up on 37 of the study participants, who are now in their twenties.

“Now that we know that stress affects the maturation of brain regions that also play a role in the control of emotions, we can investigate how this development continues later in life.”

The research is published in the journal <a href="http://www.nature.com/scientificreports">Scientific Reports</a>.

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

A rough childhood actually does make the brain mature faster

A 20-year study by researchers at Radboud University has revealed...

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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



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.

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

[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.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?

[sendtonews key="X0f6OHYoI4-2310561-12187" 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 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

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

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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



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

The rapid retreat of the Columbia Glacier

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



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



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



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



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



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



Video &amp; Image Credit: ESA



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



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

The Pyrenees Mountains in southwest Europe

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

Earth,Like,Exoplanet,3d,Render

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



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



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



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



Video Credit: NASA Goddard



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



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



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

Two distant planets may be "water worlds"

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



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



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



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



Video Credit: NASA Goddard&nbsp;



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



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

Satellites reveal how Earth's systems are interconnected

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

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



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



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



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



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



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



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



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

Tiger sharks are shifting poleward as temperatures rise

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

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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...