In the face of a rapidly globalizing world, the ever-increasing numbers around one of the most prevalent metabolic disorders are alarming. By 2022, the rate of adults worldwide living with either type 1 or type 2 diabetes had shockingly doubled compared to cases in 1990 - reaching a daunting 800 million.



An analysis from The Lancet reveals that about 445 million adults are currently living with diabetes that has not been adequately treated. 



<h2 class="wp-block-heading" id="h-increasing-rate-of-diabetes">Increasing rate of diabetes</h2>



The data presents a startling revelation - India bears the brunt of this health crisis, hosting over a fourth of the world’s <a href="https://www.earth.com/news/type-2-diabetes-heightens-alzheimers-risk/" target="_blank" rel="noreferrer noopener">diabetic adults</a>.



A total of 212 million individuals, trailed by China's 148 million, are combating diabetes across India. This escalating issue is also prevalent in the United States, Pakistan, Indonesia, and Brazil.



Although this study did not distinguish between type 1 and type 2 diabetes in adults, it's widely accepted that the majority of these cases are attributed to type 2 diabetes.



<h2 class="wp-block-heading" id="h-inequalities-in-healthcare">Inequalities in healthcare</h2>



Professor Majid Ezzati of Imperial College London expressed serious concerns about global inequalities in diabetes treatment.



"Our study highlights widening global inequalities in diabetes, with treatment rates stagnating in many low- and middle-income countries where numbers of adults with <a href="https://www.earth.com/news/diabetes-drugs-may-protect-against-dementia/" target="_blank" rel="noreferrer noopener">diabetes</a> are drastically increasing," noted Ezzati.



"This is especially concerning as people with diabetes tend to be younger in low-income countries and, in the absence of effective treatment, are at risk of life-long complications - including amputation, heart disease, kidney damage or vision loss - or in some cases, premature death."



<h2 class="wp-block-heading" id="h-diabetes-rates-an-upward-spiral">Diabetes rates: An upward spiral</h2>



Thanks to the collaborative efforts of the NCD Risk Factor Collaboration and the World Health Organization, we now have a comprehensive analysis of global diabetes rates and treatment. 



This study, which included data from over 140 million individuals aged 18 years and older from various countries, has revealed deeply unsettling truths.



The numbers are a bitter pill to swallow. Since 1990, diabetes rates have doubled for both men and women (rising from 6.8% to 14.3% and from 6.9% to 13.9%, respectively). 



This translates to around 828 million adults living with diabetes in 2022 - a drastic increase from nearly 198 million in 1990.



<h2 class="wp-block-heading" id="h-disparities-across-the-globe">Disparities across the globe</h2>



Not all nations are equal when it comes to <a href="https://www.earth.com/news/deadly-snail-venom-possible-key-to-improving-diabetes-medicine/" target="_blank" rel="noreferrer noopener">diabetes</a> rates. Between 1990 and 2022, low- and middle-income countries (LMICs) saw the biggest increases. 



In contrast, several high-income countries, such as Japan, Canada, and parts of Western Europe, observed no change or only minor decreases in diabetes rates.



In 2022, the prevalence of diabetes was particularly high in the Pacific island nations, the Caribbean, Middle East and North Africa, Pakistan, and Malaysia. On a brighter note, Western Europe, East Africa, Japan, and Canada reported the lowest rates.



Obesity and poor diets have largely fueled the surge in Type 2 diabetes. Areas where obesity is prevalent, or has dramatically increased, faced higher diabetes rates between 1990 to 2022.



<h2 class="wp-block-heading" id="h-addressing-the-global-diabetes-rate">Addressing the global diabetes rate</h2>



Dr. Ranjit Mohan Anjana, an expert at the Madras Diabetes Research Foundation in India, emphasized the need for diabetes prevention through healthier diets, exercise, and strong health policies, specifically in economically disadvantaged regions.



As of 2022, three out of five adults aged 30 years and older with diabetes - and total of 445 million individuals - did not receive adequate medication. The discrepancy in treatment coverage among nations is striking, with Belgium maintaining the highest rates.



<h2 class="wp-block-heading" id="h-coverage-for-diabetes-treatment">Coverage for diabetes treatment </h2>



Despite the swelling diabetic populations, the coverage for diabetes treatment in many LMICs remains low. It’s troubling to note that over 90% of people were untreated in 1990, a figure that has not changed substantially even in 2022.



“Our findings suggest there is an increasing share of people with diabetes, especially with untreated diabetes, living in low- and middle-income countries," said Professor Jean Claude Mbanya, <a href="https://uy1.uninet.cm" target="_blank" rel="noreferrer noopener">University of Yaoundé 1</a>, Cameroon. 



"In 2022, only 5-10% of adults with diabetes in some sub-Saharan Africa countries received treatment for <a href="https://www.earth.com/news/insufficient-sleep-increases-diabetes-risk-in-women/" target="_blank" rel="noreferrer noopener">diabetes</a>, leaving a huge number at risk of the serious health complications.” 



The study is published in the journal <a href="https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(24)02317-1/fulltext" target="_blank" rel="noreferrer noopener">The Lancet</a>.



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Global diabetes rate has doubled, reaching over 800 million

In the face of a rapidly globalizing world, the ever-increasing numbers around one of the most prevalent metabolic disorders are alarming. By 2022, the rate of adults worldwide living with either type 1 or type 2 diabetes had shockingly doubled compared to cases in 1990 - reaching a daunting 800 million. An analysis from The Lancet reveals that about 445 million adults are currently living with diabetes that has not been adequately treated. Increasing rate of diabetes The data presents a startling revelation - India bears the...

Just two servings of fish per week can help prevent recurrent cardiovascular events, according to new research from <a href="https://www.mcmaster.ca/">McMaster University</a>. The experts analyzed multiple large studies involving participants from more than 60 countries. 

The study revealed that eating oily fish on a regular basis substantially lowers the likelihood of cardiovascular events such as heart attack or <a href="https://www.earth.com/news/many-young-adults-do-not-know-common-stroke-symptoms/">stroke</a> among high-risk individuals.

The critical compound found in fish is omega-3 fatty acid, which is a type of essential fat that the body cannot make on its own. Omega-3 fatty acids are strongly associated with improved heart health. 

The researchers found that, among high-risk individuals, two servings of omega-3-rich fish each week lowered the threat of major cardiovascular events by one-sixth.

"There is a significant protective benefit of fish consumption in people with cardiovascular disease," said study co-lead author Professor Andrew Mente.

"This study has important implications for guidelines on fish intake globally. It indicates that increasing fish consumption and particularly oily fish in vascular patients may produce a modest cardiovascular benefit."

According to Mente, people at low risk for cardiovascular disease can still enjoy modest protection from CVD by eating fish rich in omega-3, but the health benefits were less pronounced than those high-risk individuals.

The investigation was based on data from nearly 192,000 people in four studies, including about 52,000 with cardiovascular disease. It is the first study of its kind to be conducted on all five continents. 

"This is by far the most diverse study of fish intake and health outcomes in the world and the only one with sufficient numbers with representation from high, middle and low income countries from all inhabited continents of the world," said study co-lead author Dr. Salim Yusuf.

The study is published in the journal <a href="https://jamanetwork.com/journals/jamainternalmedicine">JAMA Internal Medicine</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Eating fish lowers risk of recurrent cardiovascular events

Just two servings of fish per week can help prevent...

Black,Tea,,Herbal,Tea

In a breakthrough study from <a href="https://uci.edu/">UC Irvine</a>, researchers have uncovered an explanation for the antihypertensive effects of tea. The experts report that both green and black tea contain compounds that relax the blood vessels by activating ion channel proteins in the blood vessel wall. 

The discovery was made in the lab of Dr. Geoffrey Abbott, a professor in the Department of Physiology and Biophysics at the UCI School of Medicine. The findings may ultimately lead to the development of new medications for lowering blood pressure.

The researchers identified two flavonoid compounds that each activate a specific type of ion channel protein named KCNQ5. This protein allows potassium ions to diffuse out of cells to reduce cellular excitability. 

The team predicted that since KCNQ5 is found in the smooth muscle that lines blood vessels, its activation by tea catechins would also relax blood vessels.

"We found by using computer modeling and mutagenesis studies that specific catechins bind to the foot of the voltage sensor, which is the part of KCNQ5 that allows the channel to open in response to cellular excitation. This binding allows the channel to open much more easily and earlier in the cellular excitation process," explained Dr. Abbott.

Previous studies have demonstrated that consumption of green or black tea can reduce blood pressure by a small but consistent amount, and catechins were found to contribute to this effect. 

The research has major implications for improving human health. Hypertension is a very common condition that is considered to be the number one modifiable risk factor for cardiovascular disease and premature mortality, 

Each day worldwide, more than two billion cups of tea are consumed, which is second only to water. The three most popular caffeinated teas - green, oolong, and black - are all produced from the leaves of the evergreen species Camellia sinensis.

In the UK and the United States, black tea is commonly mixed with milk. The researchers found that when black tea was directly applied to cells containing the KCNQ5 channel, the addition of milk prevented its activation. However, Dr. Abbott explained that milk is not likely to interfere with the antihypertensive effects of black tea.

"We don't believe this means one needs to avoid milk when drinking tea to take advantage of the beneficial properties of tea. We are confident that the environment in the human stomach will separate the catechins from the proteins and other molecules in milk that would otherwise block catechins' beneficial effects."

"Regardless of whether tea is consumed iced or hot, this temperature is achieved after tea is drunk, as human body temperature is about 37 degrees Celsius," explained Dr. Abbott. "Thus, simply by drinking tea we activate its beneficial, antihypertensive properties."

The study is published in the journal <a href="https://www.karger.com/CPB">Cellular Physiology and Biochemistry</a>.

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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

Breakthrough study explains why tea reduces hypertension

In a breakthrough study from UC Irvine, researchers have uncovered...

Daydreaming can be a powerful way to reshape our emotions, but first we must learn how to do it, according to new research from the <a href="http://www.ufl.edu/">University of Florida</a>. Study lead author Dr. Erin Westgate wants to help people recapture their daydream state, which can boost mental and physical health and even <a href="https://www.earth.com/news/virus-that-causes-covid-19-silences-pain-in-the-body/">pain</a> tolerance. 

"When left to their own devices, people could choose to enjoy their own thoughts. But recent work suggests they do not," wrote the researchers. "When given the freedom, people do not spontaneously choose to think for pleasure, and when directed to do so, struggle to concentrate successfully."

Dr. Westgate said that the ability to think for pleasure is important, and you can get better at it. "This is part of our cognitive toolkit that's underdeveloped, and it's kind of sad."

As you build your ability to daydream, you will have a source of enjoyable thoughts at your disposal during stressful times, explained Dr. Westgate. The first step in becoming a better daydreamer is to recognize that while it may seem easy, daydreaming is surprisingly demanding.

"You have to be the actor, director, screenwriter and audience of a mental performance. Even though it looks like you're doing nothing, it's cognitively taxing."

Through her research, Dr. Westgate found that people do not intuitively understand how to think enjoyable thoughts. "We're fairly clueless. We don't seem to know what to think about to have a positive experience."

In collaboration with experts at the University of Virginia and Harvard University, Dr. Westgate analyzed participants who were instructed to think meaningful thoughts. It was assumed that this task would lead to a rewarding experience, but the volunteers reported that they actually found it less enjoyable than their unguided thoughts.

The study participants shared what they had been thinking about, and it came as a surprise to the researchers. "It was heavy stuff. It didn't seem to occur to them that they could use the time to enjoy their own thoughts," said Dr. Westgate.

When the volunteers were provided with a list of things to think about that were both pleasant and meaningful, they enjoyed the task 50 percent more than when they were instructed to think about whatever they wanted. 

According to Dr. Westgate, you can use this activity in everyday life by prompting yourself with topics you would find rewarding to daydream about, like an event you are looking forward to, a pleasant memory, or a future accomplishment.

Thinking for pleasure can help to fight boredom, but it can also be its own reward. "It's something that sets us apart. It defines our humanity. It allows us to imagine new realities. But that kind of thinking requires practice."

Previous research shows that we are most likely to daydream when our minds are minimally occupied with something else, like when we are showering or brushing our teeth. 

"The next time you're walking, instead of pulling out your phone, try it," said Dr. Westgate. "What we feel is a function of what we think. Thinking for pleasure can be a powerful tool to shape our emotions."

The study is published in the journal <a href="https://www.apa.org/pubs/journals/emo">Emotion</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Adults are not good at daydreaming, but we should be

Daydreaming can be a powerful way to reshape our emotions,...

A new study from the <a href="https://www.utoronto.ca/">University of Toronto</a> has revealed a link between <a href="https://www.earth.com/news/frequent-social-media-use-causes-depression-not-the-other-way-around/">social media</a> use and binge eating among preteens in the United States. The researchers found that children who engage in excessive screen time around age 10 have a higher risk of developing a binge-eating disorder one year later.

Binge-eating disorder is the most common eating disorder in the United States. It is characterized by quickly consuming large quantities of food, a feeling of loss of control during the binge, and feeling shameful or guilty afterward. Binge-eating disorder can turn life-threatening when it causes heart disease or diabetes. 

According to the study, each additional hour of social media engagement was associated with a 62 percent increase in the odds that the child would be suffering from a binge-eating disorder a year later. Furthermore, each additional hour of television was linked to a 39 percent increase in the risk of a binge-eating disorder.

"Children may be more prone to overeating while distracted in front of screens. They may also be exposed to more food advertisements on television. Binge-watching television may lead to binge-eating behaviors because of overconsumption and a loss of control," said study lead author Dr. Jason Nagata.

The analysis was focused on data from 11,025 children between the ages of nine and 11 who are part of the Adolescent Brain Cognitive Development Study. 

The children reported on the time they spent in front of a screen watching television, using social media, or text messaging. In addition, parents answered questions about the children's binge-eating behaviors.

"Exposure to social media and unattainable body ideals may lead to a negative body image and subsequent binge eating," said study senior author Dr. Kyle T. Ganson."This study emphasizes the need for more research on how screen time impacts the well-being of young people now and in the future."

The study findings are especially relevant during the pandemic. "With remote learning, the cancellation of youth sports, and social isolation, children are currently exposed to unprecedented levels of screen time," said Dr. Nagata.

"Although screen time can have important benefits such as education and socialization during the pandemic, parents should try to mitigate risks from excessive screen time such as binge eating. Parents should regularly talk to their children about screen-time usage and develop a family media use plan."

The study is published in the <a href="https://onlinelibrary.wiley.com/journal/1098108x">International Journal of Eating Disorders</a>.

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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

Social media use linked to binge eating among preteens

A new study from the University of Toronto has revealed...

Older women who eat more plant protein lower their risk of premature <a href="https://www.earth.com/news/one-in-five-premature-deaths-tied-to-fossil-fuel-pollution/">death</a> from all causes, according to a study from the <a href="https://www.heart.org/">American Heart Association</a>. The researchers found that substituting nuts for red meat, eggs, or dairy products was associated with a lower risk of death from all causes by up to 47 percent, depending on the type of protein that is replaced.

In particular, plant-based proteins substantially lowered the odds of developing fatal cardiovascular disease and dementia.

"Our findings support the need to consider dietary protein sources in future dietary guidelines," said study lead author Dr. Wei Bao. "Current dietary guidelines mainly focus on the total amount of protein, and our findings show that there may be different health influences associated with different types of protein foods."

Previous studies have indicated that there is a link between diets high in red meat and cardiovascular disease, but the data is sparse and inconclusive about specific types of proteins, explained the researchers.

The current investigation was focused on data from more than 100,000 postmenopausal women between the ages of 50 and 79 who participated in the national Women's Health Initiative study, which ran from 1993 to 1998. The women were then followed up with over the next two decades. 

The participants had initially completed questionnaires about their diets, including how often they ate eggs, dairy, poultry, red meat, and fish. They also documented the amount of plant proteins they consumed, such as tofu, nuts, beans, and peas. 

The researchers analyzed the amount and type of protein that the women consumed, and then divided them into groups based on who ate the most or least of each protein. 

The study revealed that women with the highest amount of plant protein intake had a nine percent lower risk of death from all causes, a 12 percent lower risk of fatal cardiovascular disease, and a 21 percent lower risk of dementia-related death.

In addition, high consumption of processed red meat was associated with a 20 percent greater risk of dying from dementia.

Women who ate more eggs had a 24 percent higher risk of dying from cardiovascular disease, and those who consumed the most dairy products had an 11 percent higher risk. The participants who reported consuming high levels of eggs also had a 10 percent higher risk of death due to cancer, but a 14 percent lower risk of death from dementia. In addition, higher poultry consumption was associated with a 15 percent lower risk of dementia.

"It is unclear in our study why eggs were associated with a higher risk of cardiovascular and cancer death," said Dr. Bao. "It might be related to the way people cook and eat eggs. Eggs can be boiled, scrambled, poached, baked, basted, fried, shirred, coddled or pickled or in combinations with other foods."

"In the United States, people usually eat eggs in the form of fried eggs and often with other foods such as bacon. Although we have carefully accounted for many potential confounding factors in the analysis, it is still difficult to completely tease out whether eggs, other foods usually consumed with eggs, or even non-dietary factors related to egg consumption, may lead to the increased risk of cardiovascular and cancer death."

The study is published in the <a href="https://www.ahajournals.org/journal/jaha">Journal of the American Heart Association</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Plant protein lowers risk of premature death by up to 47 percent

Older women who eat more plant protein lower their risk...

Experts at the <a href="https://www.manchester.ac.uk/">University of Manchester</a> have narrowed down the "perfect bedtime routine" for <a href="https://www.earth.com/news/dogs-help-children-improve-their-confidence-and-social-skills/">children</a> between the ages of two and eight. The psychologists defined the ideal bedtime by scoring different routines and activities over the course of a week. 

The study showed that a combination of activities like brushing teeth or reading a bedtime story are the most essential, but talking to children is also helpful.

The researchers assigned scores to various bedtime activities, such as 35 points for brushing teeth and 20 points for going to bed at a consistent time each night. The most effective routines were found to be those that scored more than 50 points.

Some of the other high-scoring nighttime activities include avoiding food, drinks, and screen time before bed.

According to the researchers, different combinations of methods work. They noted that once you have made a task part of your regular routine, but then fail to do it one night, the points associated with that task will be lost.

"Bedtime routines are important family activities and have important implications on children’s well-being, development and health," said study lead author Dr. George Kitsaras.

"Organizations as diverse as the Book Trust to the BBC and the NHS are all engaged in this debate - but up to now, there has been no real scientific consensus to inform them; we need untie the conflicting signals and messages parents receive."

"This lack of a clear consensus-based definition of limits health professionals' ability to communicate best practice effectively with families."

“This lack of a clear consensus-based definition of limits health professionals’ ability to communicate best practice effectively with families."

Dr. Kitsaras said that the new definition considers the parental stresses and difficulties that can arise at bedtime while incorporating best practice and available scientific advice. “This study for the first time provides that expert and scientific guidance.”

The list of core bedtime activities was compiled by 59 experts, including psychologists, dentists, and public health specialists.

“All activities around bedtime matter for children’s development and well-being. From the wide range of activities around bedtime, our experts considered toothbrushing to be the most important to remember each night," said Dr. Kitsaras.

“There are strong links between inadequate oral hygiene practices and dental decay in children and adults. For children, early childhood caries can lead to higher occurrence of dental disease in later life and, in some cases, untreated childhood caries can lead to extractions under general anaesthetic causing additional problems for children and parents."

“Washing or having a shower each night before bed, on the other hand might be a common practice for families but our experts considered it to be part of a wider umbrella of child-parent interactions rather than a standalone practice we need to specifically target."

“I have no doubt the debate will continue and our definition might even be refined as more people engage with it.”

The study is published in the journal <a href="https://journals.plos.org/plosone/">Plos One</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

The best bedtime routine for children has now been defined

Experts at the University of Manchester have narrowed down the...

Why are so many people addicted to social media? A new study from <a href="https://www.nyu.edu/">NYU</a> is helping to explain why social media tends to dominate people's lives. The researchers discovered that our efforts to maximize "likes" and other forms of online approval follows a pattern of reward <a href="https://www.earth.com/news/writing-by-hand-boosts-learning-and-memory/">learning</a> - a type of learning that is motivated and reinforced by payoffs.

According to the study authors, social media use parallels the behavior of animals seeking food rewards.

"These results establish that social media engagement follows basic, cross-species principles of reward learning," explained study co-author Professor David Amodio.

"These findings may help us understand why social media comes to dominate daily life for many people and provide clues, borrowed from research on reward learning and addiction, to how troubling online engagement may be addressed."

Many people refer to social media use as being addictive. People are so driven to pursue positive feedback online that they are often neglecting direct social interaction and even basic needs like eating and drinking.

In 2020, more than four billion people spent an average of several hours per day on internet platforms including Facebook,  Instagram, and Twitter. 

The researchers said that while social media use has been studied extensively, what actually drives people to engage, sometimes obsessively,  is less clear. To investigate, the experts analyzed whether social media use can be explained by the way our minds process and learn from rewards.

The study was focused on more than one million social media posts from over 4,000 users. The researchers found that people post more frequently in response to a high rate of likes and less frequently when they receive fewer likes.

By analyzing this pattern with computational models, the team confirmed that it closely follows the known mechanisms of reward learning. In particular, social media engagement appears to be driven by similar principles that lead animals to maximize their food rewards

"Our findings can help lead to a better understanding of why social media dominates so many people's daily lives and can also provide leads for ways of tackling excessive online behavior," said study lead author Dr. Björn Lindström.

The research is published in the journal <a href="https://www.nature.com/ncomms/">Nature Communications</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Why are so many people addicted to social media?

Why are so many people addicted to social media? A...

Light activity such as gardening or walking can protect mobility among <a href="https://www.earth.com/news/self-control-in-childhood-linked-to-slower-aging/">aging</a> adults without the need for intense exercise, according to a new study from <a href="https://ucsd.edu/">UC San Diego</a>. 

One out of every four women over the age of 65 will develop what is known as mobility disability. This condition is characterized by the inability to walk two blocks or climb a flight of stairs. 

Mobility disability is the leading type of physical impairment in the United States and a key contributor to a person's loss of independence. 

In the current study, the experts found evidence that light-intensity physical activity, including shopping or a leisurely stroll, may protect mobility in older women. 

The researchers determined that women who did not have a mobility disability at the start of the research, and who spent the most amount of time doing light-intensity activities, were 40 percent less likely to lose their mobility over the next six years.

"Older adults who want to maintain their mobility should know that all movement, not just moderate-to-vigorous physical activity, counts," said study senior author Dr. Andrea LaCroix. "We found that, among older women, light-intensity physical activity preserves mobility later in life."

The analysis was focused on 5,735 women over the age of 63 who participated in the Objectively Measured Physical Activity and Cardiovascular Health study. 

The women had worn a research-grade activity tracker for seven days, which revealed that the average time spent in light physical activity was 4.8 hours per day.

The experts determined that women who spent the most time performing light-intensity physical activity had a 46 percent lower risk of mobility disability compared to women who participated in lower levels of physical activity. The effects were found regardless of whether the individuals were obese, but the benefit was strongest among women with a body mass index (BMI) of less than 30.

"Moderate-to-vigorous physical activity is increasingly more difficult to perform as people age," said study co-author Dr. John Bellettiere. "Considering the aging population in the United States, these findings could have major impacts on public health recommendations, putting more focus on the importance of light physical activity to improve the health and well-being of older women. Doing so may help women maintain mobility and independence as they age."

According to the study authors, the data suggests that light activity is likely important for maintaining mobility, which is essential for healthy aging. Older adults with mobility disability experience more hospitalizations and spend more on health care, and women are disproportionately affected. 

"The highest levels of light-intensity physical activity are unnecessary. After five hours of activity, we observed no further increase in benefit," said study first author Nicole Glass.

"In addition, our results showed that light-intensity physical activity was associated with preserved mobility regardless of the amount of higher-intensity physical activities, such as brisk walking, jogging or running, the women engaged in. So whether you exercise or not, higher light-intensity physical activity is healthy."

The study is published in the journal <a href="https://jamanetwork.com/journals/jamanetworkopen">JAMA Network Open</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Gardening and walking help prevent mobility disability

Light activity such as gardening or walking can protect mobility...

Nature has a powerful influence on our psychological health and coping skills, even during the <a href="https://www.earth.com/news/second-wave-of-covid-19-pandemic-was-driven-by-the-weather/">pandemic</a>, according to a new study from the <a href="https://uconn.edu/">University of Connecticut</a>. 

Previous studies have confirmed a link between nature and a greater sense of well-being. The results of the current study also suggest that feeling connected with nature can protect against the detrimental mental health effects of traumatic events like the COVID-19 pandemic.

"Thinking about the natural world in an interconnected and harmonious way corresponds to improved psychological health, no matter where you are," said study lead author Professor Brian W. Haas.

The researchers conducted surveys in America and Japan to measure how much the pandemic impacted the participants' lives. The surveys were also designed to gauge the current psychological health and coping skills of the respondents, as well as how they viewed nature. 

More specifically, the experts set out to analyze whether the individuals were in tune or connected with the natural world or if they had a worldview of "mastery over nature" - the belief that people have the ability to control the natural world. 

The participants also reported on their stress levels and if the pandemic had affected them personally, including their employment or finances.

The analysis revealed that individuals who felt harmonious and connected with nature were coping better with the pandemic in both Japan and the United States.

"Clearly there's great need for study as relates to the pandemic, not just now during COVID, but also of previous pandemics and for possible future pandemics," said study co-author Professor Fumiko Hoeft.

"I feel like this is a really great lesson, and a moment for us to really appreciate that things like our relationship with nature do matter and make an impact on more tangible things, like our mental health, which we often forget."

When looking at individuals with a mastery-over-nature worldview, the researchers noticed cultural differences in coping skills.

"We found that the Americans who believed that humans are, and should be, the masters of the natural world did not tend to cope well during the pandemic, while this was not the case in Japan," said Professor Haas.

The experts propose the difference may be rooted in the concept of naïve dialecticism - the acceptance or tolerance of contradiction.

"In other cultures outside of the United States, people tend to be more comfortable with contradiction; in other cultures, it is generally more accepted to possess conflicting ideas within your mind at the same time. But in the United States, it's not. We can apply this concept to nature and the current global pandemic," said Professor Haas.

"For instance, if I hold a view that I am the master of the natural world, and then a global pandemic happens, this is a clear natural disaster. If I believe that I am the master of the natural world, then surely I would never allow a natural disaster to happen. These concepts are inconsistent with one another, and a consequence of inconsistency is often negative mood."

The study authors said that, in an increasingly virtual and technology driven world, taking a moment to appreciate nature has clear benefits regardless of where you live.

"In Japanese, there's this word called 'forest-bathing,'" said Professor Hoeft. "It's basically when you go out into nature, and enjoy being surrounded by trees. It's usually for forests, but you go walking and it's supposed to refresh you."

"People often talk about how they went out 'forest bathing.' I love thinking about these kinds of old phrases - do they have some real impact or real scientific background in the end? And I think this is one of them where this really does have a connection. There is some scientific truth behind this."

"Think about taking a step away from Zoom for a moment and taking a walk and listening to the birds chirp," said Professor Haas. "I mean, just the benefit of that, and understanding that we have a role in this natural world, and we're part of it. I think that's really intuitive and it's obvious, but I think it's also really, really important. 

We're showing very convincingly with empirical data that, during a very difficult time like we are in now, that it's important to do these things to maintain your psychological health."

While the research was focused on just two cultures, Professor Haas believes other cultures would also demonstrate a similar association between nature and good mental health. He predicts that it's likely a universal phenomenon.

The study is published in the journal <a href="https://www.journals.elsevier.com/personality-and-individual-differences">Personality and Individual Differences</a>.

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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

People who are connected with nature have better coping skills

Nature has a powerful influence on our psychological health and...

In a new study from <a href="https://ok.ubc.ca/">UBC Okanagan</a>, experts have found that dogs can improve social skills and confidence in <a href="https://www.earth.com/news/study-reveals-how-children-are-protected-from-severe-covid-19/">children</a> while helping them enjoy learning. The researchers observed children as they engaged in a social skill-training program with therapy dogs.

 "Dog lovers often have an assumption that canine-assisted interventions are going to be effective because other people are going to love dogs," said study lead author Nicole Harris. "While we do frequently see children improve in therapy dog programs, we didn't have data to support that they enjoyed the time as well."

Over six weeks, the children were accompanied by therapy dogs as they completed a series of sessions to help them build their social skills. The training sessions were focused on a new skill each week, such as how to give directions to others.

The children would first practice the skills with their therapy dog before running through the exercise with the rest of the group. 

"Therapy dogs are often able to reach children and facilitate their growth in surprising ways. We saw evidence of this in the social skills of children when they were paired with a therapy dog," said study co-author Dr. John-Tyler Binfet. 

"The dogs helped create a non-threatening climate while the children were learning these new skills. We saw the children practice and hone their social skills with and alongside the dogs."

As the children practiced and learned their new social skills, the research team documented their behavior and responses.

"Findings from our observations suggested that canine-assisted social and emotional learning initiatives can provide unique advantages," said Harris. "Our team saw that by interacting with the therapy dogs, the children's moods improved and their engagement in their lessons increased."

Overall, 87 percent of the team rated the children as being very engaged or extremely engaged during the sessions.

At the end of the training, Harris interviewed some of the children who regularly attended the sessions. Each child reported that the program was enjoyable and positive, and said the dogs were a meaningful part of the experience.

According to the researchers, the children behaved better at the sessions than at their regular after-school care program. They attributed this improvement in behavior to the fact that the children liked being around the dogs. Half of the children even mentioned ways the dogs had helped with their emotional well-being.

Harris, who is an elementary school teacher, noted that schools have become increasingly important in helping students develop social and emotional skills, and this research could contribute to the development of future school-based or after-school programs.

"Dogs have the ability to provide many stress-reducing and confidence-boosting benefits to children. It was really heartwarming to see the impact the program had on the kids."

The study is published in the <a href="https://www.tandfonline.com/loi/ujrc20">Journal of Research in Childhood Education</a>.

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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

Dogs help children improve their confidence and social skills

In a new study from UBC Okanagan, experts have found...

Irregular sleep patterns are linked to a higher chance of mood swings and depression, according to a new study from <a href="https://www.uofmhealth.org/">Michigan Medicine</a>. 

The researchers found that over the long term, variation in sleep and wake cycles increase the risk of depression just as much as sleep deprivation or staying up late most nights.

The experts report that even in short term, people who have an irregular sleep schedule from day to day can experience just as bad of a mood as those who stayed up extra late the night before.

The study was focused on data from direct measurements of the sleep and mood of more than 2,100 first-year medical residents over the course of one year.

The interns all experienced long, intense work days with work schedules that changed from day to day. These irregular schedules altered their ability to have regular sleep patterns.

The study participants wore activity trackers, self-reported on their daily mood on a smartphone app, and were assessed using quarterly tests for depressive symptoms.

The study revealed that individuals with variable sleep schedules were more likely to score higher on standardized depression symptom questionnaires and to have lower daily mood ratings. 

"The advanced wearable technology allows us to study the behavioral and physiological factors of mental health, including sleep, at a much larger scale and more accurately than before, opening up an exciting field for us to explore," said study lead author Dr. Yu Fang, a research specialist at the Michigan Neuroscience Institute. 

"Our findings aim not only to guide self-management on sleep habits but also to inform institutional scheduling structures."

Dr. Cathy Goldstein pointed out that wearable devices that estimate sleep are now being used by millions of people, including the Fitbit devices used in the study.

"These devices, for the first time, allow us to record sleep over extensive time periods without effort on behalf of the user," said Dr. Goldstein. "We still have questions surrounding the accuracy of the sleep predictions consumer trackers make, though initial work suggests similar performance to clinical and research grade actigraphy devices which are cleared by the FDA."

According to Dr. Srijan Sen, the new findings build on what his team's work has already shown about high risk of depression among new physicians, and other underlying factors that as associated with a heightened risk.

"These findings highlight sleep consistency as an underappreciated factor to target in depression and wellness. The work also underscores the potential of wearable devices in understanding important constructs relevant to health that we previously could not study at scale."

The study is published in the journal <a href="https://www.nature.com/npjdigitalmed/">npj Digital Medicine</a>.

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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

Irregular sleep linked to depression and mood issues

Irregular sleep patterns are linked to a higher chance of...

For people living in urban areas, ditching the car on the daily commute just once per week can significantly lower their <a href="https://www.earth.com/news/warming-of-2c-would-unleash-230-billions-tons-of-soil-carbon/">carbon</a> footprint. Experts at <a href="https://www.imperial.ac.uk/">Imperial College London</a> report that "active travel," such as walking and cycling, can help tackle the climate crisis.

The researchers found that shifting to active travel could save as much as a quarter of personal carbon dioxide (CO2) emissions from transport.

The study is the first of its kind to investigate the carbon-reducing impact of city-based lifestyle changes. The results suggest that increases in active mobility can even lower carbon footprints in European cities that already have a substantial number of people that walk and cycle.

"Our findings suggest that, even if not all car trips could be substituted by bicycle trips, the potential for decreasing emissions is huge," said study co-author Dr. Audrey de Nazelle.

"This is one more piece of evidence on the multiple benefits of active travel, alongside our previous studies showing cycling is the best way to get around cities for both physical and mental health, and that promoting cycling helps tackle obesity. This should encourage different sectors to work together to create desirable futures from multiple health, environmental and social perspectives."

The study was focused on nearly 2,000 people in seven European cities. The team collected data on the participants' daily travel behavior, as well as information on the location of their homes and work spaces.

The experts used statistical modeling to analyze how changes in the mode of daily travel may influence traffic-related CO2 emissions.

"We found that those who switch just one trip per day from car driving to cycling reduce their carbon footprint by about 0.5 tons over a year, representing a substantial share of average per capita CO2 emissions," explained study lead author Dr. Christian Brand from the University of Oxford.

"If just 10% of the population were to change travel behaviour, the emissions savings would be around 4% of lifecycle CO2 emissions from all car travel."

The study revealed that individuals who already cycled had 84 percent lower CO2 emissions from all daily travel compared to non-cyclists. The greatest benefits of switching to active modes of transport were for business travel, followed by leisure trips and commuting to work or place of study. 

"A typical response to the climate crisis is to 'do something', such as planting more trees, or switching to electric vehicles. While these are important and effective, they are neither sufficient nor fast enough to meet our ambitious climate targets," said Dr. Brand.

"Doing more of a good thing combined with doing less of a bad thing - and doing it now - is much more compliant with a 'net zero' pathway and preserving our planet's and our own futures. Switching from car to active mobility is one thing to do, which would make a real difference, and we show here how good this can be in cities."

According to the researchers, this will not only be good for the climate, but also for reducing social inequalities and improving public health and quality of life in urban areas. 

"To improve active travel take-up, cities across the world will need to increase investment in high-quality infrastructure for pedestrians and cyclists and incorporate policy and planning concepts that require a fairly radical rethink of our cities," said Dr. de Nazelle.

"This is in turn likely to reduce inequalities, because the concepts involve mixing different population groups rather than maintaining the model of residential zoning by socioeconomic status currently used."

The study is published in the journal <a href="https://www.journals.elsevier.com/global-environmental-change">Global Environmental Change</a>.

---

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Active travel can greatly reduce CO2 emissions in the city

For people living in urban areas, ditching the car on...

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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



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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



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The Pyrenees Mountains in southwest Europe

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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

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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

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