Santa,Claus,Sitting,Near,The,Fireplace,And,Christmas,Tree,With

Every December, colorful lights and festive tunes remind kids, and adults, that Santa Claus is on his way. Families fill their homes with decorations, children write wish lists, and a sense of anticipation hangs in the air. 



Parents have long told their kids that if they behave well, Santa will bring them just what they asked for. Until recently, few studies examined whether this belief actually influenced how kids act.



In a new project, researchers decided to see if <a href="https://www.earth.com/news/irregular-bedtimes-disrupt-the-well-being-and-behavior-of-children/" target="_blank" rel="noreferrer noopener">children</a> truly become more considerate when they think Santa is watching. 



They explored whether kids act better because of the story of Santa or because of everything else going on during the holiday season. 



Professor Kapitány from the <a href="https://www.ox.ac.uk/" target="_blank" rel="noreferrer noopener">University of Oxford</a> led the investigation along with colleagues from <a href="https://www.durham.ac.uk/" target="_blank" rel="noreferrer noopener">Durham</a>, <a href="https://www.ed.ac.uk/" target="_blank" rel="noreferrer noopener">Edinburgh</a>, and <a href="https://www.leeds.ac.uk/" target="_blank" rel="noreferrer noopener">Leeds</a>.



<h2 class="wp-block-heading" id="h-kids-santa-and-surprises">Kids, Santa, and surprises</h2>



The study tracked 533 kids between ages four and nine over three separate Christmases and visits from Santa. Families <a href="https://www.earth.com/news/kids-with-behavioral-issues-have-high-cortisol-levels-in-their-hair/" target="_blank" rel="noreferrer noopener">reported on behaviors</a> like sharing, helping others, and following rules. 



Parents also described whether their kids believed in Santa and took part in festive traditions. According to the data, there was no direct link between Santa belief alone and an increase in kindness.



Instead, good behavior rose as Christmas neared when families engaged in activities such as decorating their homes, singing carols, and enjoying special treats.&nbsp;



The study noted that these experiences led to small but consistent boosts in generous and <a href="https://www.earth.com/news/kindergarten-conduct-childhood-behavioral-problems-will-cost-society-later/" target="_blank" rel="noreferrer noopener">respectful actions</a>. 



This shift also came with a bump in more rowdy moments, highlighting that heightened excitement can show up in many ways.



<h2 class="wp-block-heading" id="h-the-power-of-festive-rituals">The power of festive rituals</h2>



For many families, hanging ornaments or baking Christmas cookies is more than just a fun holiday pastime. 



These rituals offer children a chance to feel a sense of togetherness and excitement that breaks up their usual routine. 



The study suggests that these shared activities have a greater <a href="https://www.earth.com/news/children-consider-their-own-past-actions-before-judging-others/" target="_blank" rel="noreferrer noopener">effect on kindness</a> than the idea of being judged by a mysterious gift-giver in a red suit.



Parents often say they remind kids to be on their best behavior so Santa will reward them. Yet the findings show it’s the holiday atmosphere itself that has the strongest pull. 



One researcher described it by saying “the magic is in the time of year, so to speak, not in the claim over the supernatural big man.”



<h2 class="wp-block-heading" id="h-supernatural-beliefs-and-morality">Supernatural beliefs and morality</h2>



Some scholars point out that Santa is often placed on the same pedestal as other powerful beings in certain cultures. 



Parents treat him as a figure who can watch children from afar, keep track of good deeds, and decide on gifts. 



This study adds to conversations about how belief in unseen forces might shape moral choices.



Other work shows that religious ideas can sometimes bring out prosocial behavior. Hearing about rules or promises of rewards can prompt more cooperation.&nbsp;



In the case of Santa, though, the results suggest that the presence of traditions might play a bigger role in guiding kids toward friendly, generous actions.



<h2 class="wp-block-heading" id="h-contrasting-philosophies-on-kids-and-santa">Contrasting philosophies on kids and Santa</h2>



Philosophers have different views on whether parents should even promote Santa’s story. 



Dr. Joseph Millum from the <a href="https://www.st-andrews.ac.uk/" target="_blank" rel="noreferrer noopener">University of St. Andrews</a> worries it “breaches trust,” calling Santa a “preposterous lie.” Others feel that Santa can be a healthy way to bring joy into children’s lives. 



Tom Whyman, a lecturer in philosophy at the <a href="https://www.liverpool.ac.uk/" target="_blank" rel="noreferrer noopener">University of Liverpool</a>, says that “kids need Santa.” 



These opinions highlight the varying attitudes people have toward a figure whose influence has become an enduring feature of holiday culture.



When parents choose whether to encourage this tale, they grapple with how it shapes their children’s sense of wonder and truth. 



Some families see Santa as <a href="https://www.earth.com/news/pretend-play-builds-the-foundation-for-learning-and-relationships/" target="_blank" rel="noreferrer noopener">harmless make-believe</a>, while others wonder if creating a magical visitor might later undermine a child’s trust. 



The study reminds us that cultural myths carry weight, yet they may not fully explain shifts in children’s behavior.



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



The research shows that singing festive songs, <a href="https://www.earth.com/news/christmas-trees-have-unique-strategies-to-survive-freezing-winters/" target="_blank" rel="noreferrer noopener">placing ornaments on a tree</a>, or preparing traditional foods creates a distinct environment. That environment is linked with both extra kindness and occasional bursts of negative behavior. 



While the belief in Santa himself did not correlate directly with improved conduct, the coordinated celebration of the season proved to be more powerful.



Families can consider how these moments <a href="https://www.earth.com/news/personality-traits-are-not-strongly-inherited-from-parents/" target="_blank" rel="noreferrer noopener">bring the household closer</a>. Children who help bake cookies or watch a classic Christmas movie often feel a greater sense of involvement. 



This sense of participation aligns with the study’s findings that holiday events can be a driving force behind thoughtful gestures, cooperation, and cheer.



<h2 class="wp-block-heading" id="h-bigger-questions-about-childhood-and-culture">Bigger questions about childhood and culture</h2>



Santa’s modern image traces back to a blend of folklore, marketing campaigns, and traditions inspired by Saint Nicholas. 



For countless children, the idea of a kindhearted figure traveling the skies in a single night is a highlight of December. 



This study encourages us to think about how such stories fit into broader questions about parenting approaches and cultural myths. 



Many communities celebrate special figures who reward the nice and ignore or punish the naughty. 



In each case, children experience stories they can hold onto, if only for a few magical years. The current research suggests that these stories may matter less than the rituals and music, but they still add color to the season.



<h2 class="wp-block-heading" id="h-why-does-any-of-this-matter">Why does any of this matter?</h2>



Plenty of families continue to share the Santa story, watch Christmas movies, and maintain lively traditions. 



The researchers point out that more studies could explore how different cultural celebrations, and the potential <a href="https://www.earth.com/news/holiday-stress-is-higher-this-year-compared-to-2023/" target="_blank" rel="noreferrer noopener">stress levels surrounding them</a>, ultimately help shape child development. 



From the outside, it might seem obvious that gatherings, songs, and decorations encourage bright and kind behavior, yet measuring these elements takes careful planning.



Some psychologists are curious about whether similar patterns show up around other holidays or special events with strong rituals.&nbsp;



The core message remains that communal practices, family bonding, and joyful anticipation often spark gentler and more considerate behavior in children. 



The Santa myth is part of that puzzle, but it may not be the only factor making kids play nicely.



<h2 class="wp-block-heading" id="h-what-did-we-learn-about-kids-and-santa">What did we learn about kids and Santa?</h2>



The takeaway here is that Christmas is a powerful backdrop for <a href="https://www.earth.com/news/many-parents-use-threats-to-discipline-children-but-its-not-effective-in-the-long-run/" target="_blank" rel="noreferrer noopener">shaping how children behave</a>. 



A lively household filled with festive foods, carols, and colorful decorations can steer kids toward more thoughtful choices, even if the well-known Santa story doesn’t stand alone as a motivator. 



Traditions that families share appear to matter more than the promise of presents under the tree.



These observations offer a new way to think about how myths and rituals come together to create a meaningful holiday experience.&nbsp;



Children may still look forward to Santa’s arrival each year, but the real spark for positive behavior lies in those precious moments spent enjoying the season.



The full study was published in the journal <a href="https://osf.io/preprints/osf/e8jm6" target="_blank" rel="noreferrer noopener">OSF Pre-prints</a>.



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Does believing in Santa really make kids behave better? A new study found out

Every December, colorful lights and festive tunes remind kids, and adults, that Santa Claus is on his way. Families fill their homes with decorations, children write wish lists, and a sense of anticipation hangs in the air.  Parents have long told their kids that if they behave well, Santa will bring them just what they asked for. Until recently, few studies examined whether this belief actually influenced how kids act. In a new project, researchers decided to see if children truly become more considerate when they think...

New research has found that when it comes to trusting strangers, our brains tend to gravitate toward those who resemble trustworthy people we’ve known in the past. 

The new study was conducted by psychologists from <a href="https://www.nyu.edu/">New York University</a> and published in the journal Proceedings of the National Academy of Sciences. 

If a stranger bears a resemblance to a trustworthy person, then we are inclined to trust them, and if they look like an untrustworthy acquaintance, then we are less likely to trust them. 

“Our study reveals that strangers are distrusted even when they only minimally resemble someone previously associated with immoral behavior,” said Oriel FeldmanHall, now an assistant professor in<a href="https://www.brown.edu/"> Brown University</a>'s Department of Cognitive, Linguistic, and Psychological Sciences and the study’s lead author. 

FeldmanHall compared the response to Pavlov's dog, which was a famous experiment in which a dog was trained to salivate at the sound of a bell because it meant feeding time. The dog then salivated whenever he heard a similar bell tone no matter if it meant food or not. 

We use the same sort of Pavlovian response when deciding whether or not a stranger is trustworthy. 

For the study, the researchers asked participants to play several <a href="https://www.earth.com/news/infidelity-forgive-rebuild-trust/">trust</a> games. Each player had to decide whether or not to entrust their game money to three different players who were represented by a facial image. 

In the game, the money could be multiplied four times, as each player was given the opportunity to share the money back with the original player or keep the money for themselves. 

The players were categorized as highly trustworthy, somewhat trustworthy, or not at all trustworthy, and the participants associated these categorizations with the facial images of the players they were grouped with. 

In a second experiment, the first players were asked to choose new partners, but the new facial images were slightly modified to resemble the original players in their group. 

The changes were not noticeable, but the players continued to opt to play with the strangers who had facial images similar to the highly trustworthy individual they played with during the first experiment. 

The more a player looked like a highly trustworthy player, the more they were likely to be chosen for the game. 

The researchers also examined the brain activity of the participants while they were deciding between players and the same region of the brain was activated during the first and second rounds of the game. 

The study shows the unique way in which our brains base trust base decisions on past experiences and facial recognition. 

“We make decisions about a stranger's reputation without any direct or explicit information about them based on their similarity to others we've encountered, even when we're unaware of this resemblance," said Elizabeth Phelps, the paper's senior author. “This shows our brains deploy a learning mechanism in which moral information encoded from past experiences guides future choices.” 

--

By <a href="mailto:kayvandette@gmail.com">Kay Vandette,</a> <a href="https://www.earth.com/">Earth.com</a> Staff Writer

How the brain decides who we do and do not trust

New research has found that when it comes to trusting...

A new study has found that Americans are spending more time at home, and it has resulted in a substantial amount of saved energy.

Researchers found that more and more people are working from home, shopping online, and streaming media online, which has resulted in energy savings of 1,700 trillion British Thermal Units (bTU) in the year 2012. To put this figure into perspective, it accounts for 1.8% of the national total.

The study was conducted by researchers from the <a href="https://www.utexas.edu/">University of Texas at Austin</a> and <a href="https://www.rit.edu/">Rochester Institute of Technology</a> and published in the journal <a href="http://www.cell.com/joule/fulltext/S2542-4351(18)30003-">Joule</a>.

Even though energy demand in residential spaces increased with more people at home, there was still a net gain in energy and less energy demand in office and non-residential areas. 

For the study, researchers focused on two aspects of characterizing lifestyle, the first being how people spend money on goods and services, and the second being how and where people spend their time. 

The researchers collected data from the <a href="https://www.bls.gov/">Bureau of Labor Statistics</a>’ annual <a href="https://www.bls.gov/tus/">American Time Use Survey</a>, in which an estimated 11,000 people report on how they allocate their time. 

After analyzing the data, the research team found that Americans spent an average of 8 more days at home, 1 day less traveling, and 1 week less in non-residential buildings in 2012 compared to 2003. 

The changes were most apparent in younger demographics, as people ages 18-24 spent 70 percent more time at home than most everyone else. 

The researchers then mapped <a href="https://www.earth.com/news/energy-colonialism-hurricane-maria/">energy</a> use, taking into account the more time spent at home. 

In 2012, these changes resulted in both an increase in residential energy use of 480 trillion bTU and a decrease in energy in non-residential spaces of 1,200 trillion bTU.

The reason for the significant drop in energy use in non-residential spaces could be related to the amount of time spent online and how many more people work from home compared to previous years. 

“This work raises awareness of the connection between lifestyle and energy,” said Ashok Sekar, the study’s first author. “Now that we know people are spending more time at home, more focus could be put on improving residential energy efficiency.” 

--

By <a href="mailto:kayvandette@gmail.com">Kay Vandette</a>, <a href="https://www.earth.com/">Earth.com</a> Staff Writer

Americans are working and shopping from home, and it saves energy

A new study has found that Americans are spending more...

A new study from the <a href="https://ucsd.edu/">University of California San Diego</a> has revealed that subtle, emotionally charged images appearing on a billboard or a television screen can have a profound effect on our behavior.

A research team led by Piotr Winkielman conducted previous research which demonstrated that images of happy or scowling faces have an impact on how individuals behave. For the current study, the team set out to observe responses to other images and words in addition to pictures of faces.

“We wanted to compare two major kinds of emotional stimuli that people encounter in their life: words and pictures, including those of emotional faces and evocative images of objects,” said Winkielman. “We also tested if it matters whether these stimuli are presented very briefly or for a longer period of time.”

Study participants were instructed to classify objects, faces, or words on a computer screen. The researchers planted brief flashes of faces, pictures, or words that were either positive or negative into a series of emotionally neutral images displayed in rapid succession. After observing the images, the individuals were provided with soft drinks and told to drink as much as they desired.

One experiment compared the effect of emotionally charged words, such as "panda" and "knife,” with the influence of happy and angry facial expressions. A second experiment analyzed the effect of words with images of objects that stimulate emotion, such as a gun or a <a href="https://www.earth.com/news/puppies-talk-older-dog/">cute dog</a>.

The results of the study were consistent with the previous research. Participants drank more after seeing happy faces and less after seeing angry faces. The individuals also drank more after seeing positive objects compared with those who viewed negative objects. Positive words did have any effect on how much soda the individuals consumed.

“We found that emotive images of objects altered the amount that participants drank, with 'positive' objects increasing consumption and 'negative' objects decreasing it,” said Winkielman. “But people were not swayed by emotional words, which were somehow powerless -- even though the words were rated to be as emotive as the pictures.”


The experts were surprised to find that images which were nearly invisible and only shown for 10 milliseconds had the same effect as clearly visible images that were shown for 20 times longer.


“In our experiment, the duration of the emotional cue did not matter for its ability to influence consumption," explained Winkielman. “This echoes some previous studies, however we need stronger evidence to confidently claim that fleeting images work as well as more noticeable images in altering behavior.”

The study is published in the journal <a href="https://www.frontiersin.org/journals/psychology">Frontiers in Psychology</a>.

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Emotionally charged images influence people more than words

A new study from the University of California San Diego...

It has been 4 months since <a href="https://www.earth.com/news/hurricane-maria-slams-puerto-rico/">Hurricane Maria</a> slammed into Puerto Rico, and half of the residents on the island are still living without power. Dr. Catalina de Onís of <a href="http://willamette.edu/">Willamette University</a> is reporting that this humanitarian crisis can be blamed on the energy colonialism of the United States just as much as the storm itself.

The Trump Administration recently announced that Puerto Rico is too wealthy to be given additional funding for recovery. However, over a million people still have no electricity and tens of thousands are relying on drinking water that may be contaminated with raw sewage.

According to Dr. Onís, a perfect storm of devastation was created in Puerto Rico by the colonial legacy, a $73-billion debt crisis, outdated infrastructure, and Hurricanes Irma and Maria. She has been investigating the country's colonialist energy policies and has determined that many of these policies must be given further examination.

“Inspired by local grassroots organizing efforts, and angered by the ongoing exploitation of Puerto Rico as a US colony, I have spent four years studying how the territory has been exploited as a sacrifice zone for empire building and experimentation, corporate greed, and toxic energy projects,” said Dr. Onís.

The study addresses one particular policy, known as Operation Bootstrap, that “continues to haunt Puerto Rico.” Launched in the 1940s, the initiative industrialized the economy of Puerto Rico and positioned the territory as a destination for wealthy investors and corporate polluters, including the fossil fuel industry.

Dr. Onís notes that there are ongoing efforts by some communities in Puerto Rico to develop and implement resident-managed solar projects.

She explains: “If shifting to solar and wind becomes a license for green capitalism, continued hyper-consumption and an outsider-knows-best mentality, then alternative energy sources only perpetuate the same unsustainable systems that created our current problems. As so many Puerto Ricans have argued, radical transformations and disruptions to colonial, neoliberal business-as-usual are urgent and they begin with local community control.”

This research ultimately emphasizes the importance of understanding energy colonialism's role as a barrier to energy justice. Dr. Onís says that energy colonialism should be addressed in every conversation about weather disasters and everyday crises to support the needed movement toward energy democracy.

The study is published in the journal <a href="https://www.frontiersin.org/journals/communication">Frontiers in Communications</a>.

--

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Energy colonialism at the root of Hurricane Maria aftermath

It has been 4 months since Hurricane Maria slammed into...

The United Kingdom’s withdrawal from the European Union (EU) — commonly known as <a href="https://www.earth.com/news/fear-foreigners-influenced-brexit/">Brexit</a> — was an unprecedented move and has left the UK, as well as most of Europe, scrambling to see what will happen as a result. Among many significant changes that will occur, a new study in the <a href="https://www.cambridge.org/core/journals/social-policy-and-society">Journal of Social Policy and Society</a> finds that Brexit is one of the greatest threats to women’s rights and social inclusion.

Researchers from the <a href="https://www.surrey.ac.uk/">University of Surrey</a> and <a href="http://www.canterbury.ac.nz/">University of Canterbury</a>, New Zealand, assessed the potential impact of Brexit on gender equality in the UK and investigated the country’s past voting record in the Council of the European Union on related issues. They determined that gender equality in the UK may be at risk following Brexit, as business interests tend to take precedence over women’s rights when it comes to historical negotiation of terms with the EU.

Another worrying factor is the recent silence on these issues throughout the Brexit discussions, which have mainly focused on trade. There was also a recent vote against amendments to the European Withdrawal Bill that was meant to safeguard the rights in the 2010 Equality Act. These recent occurrences have led the researchers to believe that gender equality policies are likely to be weakened following the UK’s withdrawal from the EU.

The UK also has a less than stellar record of protecting women’s rights. This is evident by the UK’s resistance of the Pregnant Workers Directive, an action that showed a clear preference for business interests over the interest of the country’s women. Additionally, the UK has a restrained position regarding gender balance on corporate boards and seeks to avoid regulation in this area, showing a preference to preserve the status quo, often leading to discrimination towards women.

“Brexit poses the greatest modern-day threat to women’s rights and gender equality policies in the UK,” says Roberta Guerrina, Head of Politics at the <a href="https://www.surrey.ac.uk/">University of Surrey</a>. “European legislation affords a degree of protection to women in the UK, but once we leave Europe there is no guarantee that the same levels of protection will remain intact.” 

The researchers believe that women’s reproductive rights will be especially vulnerable to attack, “as business production remains more valued than reproduction.” It’s safe to say that Brexit represents a major shift both politically and culturally within the UK, and it may end up hurting the women that call this country home.

--

By <a href="mailto:certz@earth.com">Connor Ertz</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Brexit may be a major threat to women’s rights in the UK

The United Kingdom’s withdrawal from the European Union (EU) —...

Last summer I travelled with my partner Erin throughout the state of Colorado.  Most of our trip was climbing mountains but we also hiked to alpine lakes, camped in the woods, wandered Great Sand Dunes National Monument.  

At first I thought it was an isolated incident, someone hiking a 14er (mountain of 14,000 ft +) with a wireless speaker playing their music.  I cringed, myself preferring the sound of squeaking Pikas and Marmots to music while in the mountains.  

Then it happened again.  As I was descending Mt. Massive above tree line, a man playing loud rock music stopped me to ask how far it was to the summit.  I was polite but inwardly angry.  How is it this man’s right to impose his music on other hikers, much less wildlife, especially in a wilderness area?  Wandering on the sand dunes at night near the trickle of a stream, Erin and I went looking for stars and a place to lay on the sand and watch them.  Tourists played their music as they wandered on the dunes near us, shattering any illusion of solitude, destroying the remnant of quiet nature.

Finishing up with a bouldering session near Tucson this winter, a man with blonde dreadlocks asked us if it was ok to play music while he and his partner climbed on the other side of the boulder.  I felt a little better that at least I was being asked for my permission.  Erin and I were leaving anyway and said that music was ok, we were heading out.

Running through parks or even hiking on trails, headphones are omnipresent and they give an easy excuse for ignoring other people around you.  Headphones are a poor substitute for solitude though, they only create a wall, not a place of self-reflection or connection to the Earth.  I watched a woman moving up a mountain in Colorado, listening to her headphones; as the woman hiked quickly uphill, clouds gathered and thunder rumbled ominously.  Thunder is a dangerous situation at that elevation, especially when moving up the mountain.  I wondered if the woman was fool hardy, inexperienced or perhaps tuned out of her immediate environment by music, not being fully present on a mountain full of hazard.

The last time I went into REI to price and compare different climbing rope, something clicked.  It wasn’t that hundreds of people decided on their own that wireless speakers and music were good to carry into the outdoors.  Wireless speakers were being marketed for outdoor recreation.  I understand some music, especially if you’re out in a remote location for months, it can be comforting.  The main problem is when we never turn off our music and listen to our surroundings or connect to each other.  A mountain is NOT a gym, it is a sacred place, listen to it.  A fellow hiker is NOT a distraction or annoyance but a person with whom you might share more than you suspect.  Wildlife should be respected, watched, loved at a distance and not disturbed by your inconsiderate music. Can you imagine a world where music is always playing?  Would you replace bird song with Bob Marley’s Three Little Birds?  I love both and both have their place but bird song lives deeper within us than human music.

Some would argue that at least people listening to music are getting outside.  Isn’t what we want is more people outdoors?  I would argue that more people aren’t getting outside because of portable music, instead it’s changing the reality for people who already get outside.  

Stats from the National Parks Service suggest that in <a href="https://www.earth.com/news/national-parks-trump-ghost-teddy-roosevelt/">National Parks</a> at least, a smaller percentage of the population is recreating out of doors.  I don’t think access to an iPod is going make a person take to a mountain trail instead of a gym treadmill but even if it does it highlights the problem.  Using portable music creates the illusion that you are in an environment, let’s say a gym, that is under human control.  As more and more people learn to rock climb not on a cliff face but inside of a gym, it’s ever more important to emphasize the difference between the two.  Climbing in a gym can be a real challenge and the hardest climbs are much harder than the easiest outdoor climbs but the outdoors offers so much more.  You aren’t likely to be surprised by an encounter with a wild animal or caught in a rainstorm inside of a gym.  

Cacti, trees, clouds, rattlesnakes and dirt are all minimized inside gyms.  A gym also has one major difference from outside, a gym can be anywhere.  A climbing gym in Rapid City South Dakota looks very similar to a climbing wall in Grand Junction, Colorado but the outside climbing is radically different.  In South Dakota you’d be climbing dark granitic rock surrounded by ponderosa pine.  In Grand Junction it’d be light colored sandstone surrounded by high desert piñon-juniper woodlands.  It’s the natural environment and the unobstructed, wild freedom that goes with it which is threatened, not a trip to the gym and not your music.  

Further down the line, I worry that people absorbed in their own music will miss wildlife.  In missing wildlife, there may be no awareness when the forests, mountains and deserts are bereft of wild creatures.  The scariest thing of all is a loss of a wild environment without anyone even noticing.       

--

By <a href="mailto:zachfitzner@yahoo.com">Zach Fitzner</a>, <a href="http://earth.com">Earth.com</a> Staff Writer

Is portable music ruining the outdoors?

Last summer I travelled with my partner Erin throughout the...

A new study has revealed that sandwiches are having a substantial impact on <a href="https://www.earth.com/news/oceans-buffer-greenhouse-gas/">greenhouse gas emissions</a>. In the first study of its kind, researchers at <a href="http://www.manchester.ac.uk/">The University of Manchester</a> have tracked the carbon footprint of a sandwich by examining its entire life cycle including production, packaging, and food waste.

The research team focused on 40 sandwich recipes for their investigation. The highest carbon footprints were found in sandwiches that contained bacon, ham, or sausage, as well those made with cheese or prawns. 

The most carbon intensive process was discovered in sandwiches served on all-day breakfast menus that include eggs, bacon, and sausage. The study revealed that the production of just one of these sandwiches generates a carbon dioxide equivalent (CO2 eq.) that is comparable to driving a car for 12 miles.

The lowest carbon footprint was found in a sandwich made at home with ham and cheese. Furthermore, the study demonstrated that sandwiches made at home could reduce carbon emissions in half compared to eating out.

According to the British Sandwich Association (BSA), more than 11.5 billion sandwiches are consumed each year in the UK. Around half of those are made at home and the other half are bought in shops, supermarkets, and service stations.

“Given that sandwiches are a staple of the British diet as well as their significant market share in the food sector, it is important to understand the contribution from this sector to the emissions of greenhouse gases,” said study co-author Adisa Azapagic.

“For example, consuming 11.5 billion sandwiches annually in the UK generates, on average, 9.5 million tonnes of CO2 eq., equivalent to the annual use of 8.6 million cars.”

The researchers established that the biggest contributor to the carbon footprint of a sandwich is the agricultural production and processing of the ingredients, which generates up to 67 percent of the CO2 eq. for fast food sandwiches. In addition, the refrigeration of sandwiches in the supermarket can account for up to 25 percent of their overall contribution to emissions.

“We need to change the labelling of food to increase the use-by date as these are usually quite conservative,” said Professor Azapagic. “Commercial sandwiches undergo rigorous shelf-life testing and are normally safe for consumption beyond the use-by date stated on the label.”

The study authors pointed out that reducing certain ingredients that have a higher carbon footprint such as cheese and meat would not only help to cut back on greenhouse gas emissions, but would also contribute to healthier diets with less calories.

The research is published in the <a href="https://www.journals.elsevier.com/sustainable-production-and-consumption/">Journal of Sustainable Production and Consumption</a>.

-

By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Even your sandwiches have an environmental impact

A new study has revealed that sandwiches are having a...

Because young people today are the biggest users of <a href="https://www.earth.com/news/teens-sleep-social-media/">social media</a> of any age group, many are concerned about how social media may be impacting teens. 

Researchers from the<a href="https://www.birmingham.ac.uk/"> University of Birmingham</a> set out to investigate what effect social media might have on healthy habits for young people. 

While social media can have a positive impact on health, with access to information and fitness apps, the researchers also found some dangers of social media pertaining to peer pressure. 

The results show that even though teenagers are often critical of celebrity-endorsed products and the airbrushed perfection of celebrity selfies, following their peers online can lead to negative body image, the feeling peer pressure, and low self-worth. 

The study was published in the journal Sport, Education and Society. 

The researchers asked 1,296 people ages 13 to 18 from British schools about their online habits with regard to health-related social media. 

The team outlined several health categories, including physical activity, diet/nutrition, body image and sleep. 

Interestingly, while the study participants proved themselves to be critical of celebrity health endorsements or celebrity selfies, content shared by peers had a much deeper impact. 

“'One of the issues we saw in this report were selfies, which, because they are coming from other young people, heighten the level of peer pressure,” said Victoria Goodyear, the study’s lead author. “They might compare themselves to others from school if they have low self-esteem or have had a bad day, although not every child will do so. These images may have been filtered, but they focus on body parts, diet, and exercise, which may create pressure.”

The study shows that due to social media, peer pressure is a problem that spreads beyond the classroom. While the younger generation has developed a critical eye, the accessibility of social media means they are confronted with social pressure even outside of school. 

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By <a href="mailto:kayvandette@gmail.com">Kay Vandette</a>,<a href="https://www.earth.com/"> Earth.com </a>Staff Writer

Young people are social media savvy, but still pressured by peers

Because young people today are the biggest users of social...

Many people pledge to reduce their <a href="https://www.earth.com/news/drinking-alcohol-cancer-dna/">alcohol</a> intake in the month of January, and a team of researchers from the <a href="http://www.bristol.ac.uk/">University of Bristol</a> set out to determine how successful drinkers are in following through with these resolutions. The study revealed that very few individuals who attempted to reduce their alcohol consumption managed to do so after six months.

The experts analyzed data on the alcohol intake patterns of nearly 3,000 drinkers for the research, which was funded by the <a href="http://sphr.nihr.ac.uk/">NIHR School for Public Health Research</a>. Around 20 percent of the drinkers who were interviewed for the study reported a desire to cut back. The participants were most commonly motivated to drink less in an effort to lose weight, improve fitness levels, save money, or avoid health problems.

The researchers followed up with the individuals six months later, and found that those who had not set out to cut back on their drinking had reduced their alcohol consumption by the same amount as those who aimed to reduce their alcohol intake.

The study was led by Dr. Frank De Vocht from Bristol Medical School.

“Alcohol consumption is of particular concern to the UK's public health,” said Dr. De Vocht. “We wanted to find out if motivation alone changes limiting intake. Sadly, although people start with good intentions, our results suggest that something more is required for those intentions to make a difference.”

“For people who are serious in their intention to reduce consumption, obtaining structural support, for example by signing up to the Dry January campaign, may help. Alternatively, smartphone apps are also being tested as a way to help people reduce their intake, but it's too early to say whether these can make a difference.”

The research is published in the journal <a href="https://www.psychologytoday.com/basics/addiction">Addiction</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

Most drinkers who wish to cut back struggle with follow through

Many people pledge to reduce their alcohol intake in the...

Childhood obesity is a growing problem in the United States, and according to the <a href="https://www.cdc.gov/obesity/data/childhood.html">Centers for Disease Control</a> (CDC), it disproportionately affects children from low-income families. 

The CDC also reports that nearly one in five children between the ages 6 and 19 is obese. 

Many factors contribute to childhood obesity, but new research has found that poor sleep quality leads to a higher body mass index (BMI). 

The study was carried out by researchers from <a href="https://www.massey.vcu.edu/">The Virginia Commonwealth University Massey Cancer Center</a>. 

As <a href="https://www.earth.com/news/rise-obesity-mortality-rates/">obesity</a> rates climb, so do the risks of cancer.

"Childhood obesity very often leads to adult obesity," said Bernard Fuemmeler, the study's lead author. "This puts them at greater risk of developing obesity-related cancers in adulthood."

It’s been previously proven that poor sleep is connected to adult obesity, but less research has been done on the link between childhood obesity and sleep habits.

The researchers enrolled 120 children from the Newborn Epigenetic Study, which examines how environmental exposures and nutrition affect genes. 

The children were asked to wear accelerometers for five days in order to track sleep-wake cycles and given the “eating in the absence of hunger test.” The hunger test asks participants to eat until they feel full and allowed the researchers to better understand the children's eating habits.

After analyzing both sleeping and eating habits in the study participants, the researchers discovered that shorter sleep and restless sleep was linked to a higher BMI and bigger waist size. 

If a child got more sleep, every extra hour of sleep was linked to a decreased BMI. The results also showed that less sleep led to a higher intake of calories.

"Today, many children are not getting enough sleep," Fuemmeler said. "There are a number of distractions, such as screens in the bedroom, that contribute to interrupted, fragmented sleep. This, perpetuated over time, can be a risk factor for obesity."

The researchers hope their results will help create new treatments to prevent childhood obesity and the increased risk of cancer related to obesity. 

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By<a href="mailto:kayvandette@gmail.com"> Kay Vandette</a>,<a href="https://www.earth.com/"> Earth.com</a> Staff Writer

Poor sleep quality linked to childhood obesity

Childhood obesity is a growing problem in the United States,...

Researchers at the <a href="https://www.umkc.edu/">University of Missouri-Kansas City</a> set out to determine out what women perceive to be the ideal female figure in the United States. The study revealed that women are now finding muscular and toned bodies to be more desirable over extremely thin bodies.

The research team focused its study on the Miss USA competition, where contenders are primarily judged on their appearance and also how well they fit into today's beauty standards. The experts showed images of pageant winners from 1999 to 2013 wearing two-piece swimsuits to 78 undergraduate female students.

The study participants rated the <a href="https://www.earth.com/news/women-neural-activity-sexually/">women</a> according to how muscular, thin, and attractive they were. The more recent pageant winners received the highest ratings, and the team noted that these particular women have become increasingly muscular over the past 15 years.

Next, the researchers analyzed whether the long-held ideal of extreme thinness is evolving to include enhanced muscle tone. A separate group of 64 undergraduate students were shown pairs of photographs featuring 14 women. Each pair of images was identical in every way except that the muscular definition of the woman's body was digitally removed in one picture, leaving a “thin only" image and a “thin and toned" image.

The images were first shown separately, and the study participants rated both versions of the picture as being equally attractive. When the pairs of images were shown side-by-side, however, the muscular images were more appealing to the participants.

“There is a shift in the thin ideal female figure to one that now includes the appearance of physical fitness via muscularity,” said Bozsik. She explained that the findings of the study are consistent with the growing preference for a toned and thin female figure that is commonly portrayed now in the “fitspiration" trend on social media.

“These websites allow individuals to collect images of women with whom they identify or admire, essentially allowing them to cultivate their own media repertoire of highly salient thin and fit media,” said Bozsik. “This process of selecting preferred images and then narrowing the media focus by placing these images on their 'boards' may inadvertently increase the risk of developing higher levels of body dissatisfaction, as well as subsequent disordered-eating behaviors that are linked to it.”

The study is published in Springer's journal <a href="http://www.springer.com/psychology/journal/11199">Sex Roles</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

New beauty standards prefer healthy and toned over skinny

Researchers at the University of Missouri-Kansas City set out to...

Researchers at <a href="http://www.tcd.ie/">Trinity College Dublin</a> have taken a closer look at the genetic diversity of the Irish population. The experts have discovered a hidden genetic footprint that was formed by both geography and historical migrations.

Ireland has been inhabited for 10,000 years. While cultural and geographical differences have been established, there has been no distinction made between various genetic groups across the country.

The current study assembles a new image of the genetic landscape of <a href="https://www.earth.com/image/clew-bay-islands-western-ireland/">Ireland</a> which is quite complex. The findings clearly show the genetic signatures left behind within Irish populations by historical migrations.

“This subtle genetic structure within such a small country has implications for medical genetic association studies,” said study co-author Ross Byrne. “As it stands, current corrections for population structure in study designs may not adequately account for this within country variation, which may potentially lead to false positive results emerging.” 

The researchers analyzed genetic variation across nearly 1,000 Irish genomes and compared them with over 6,000 genomes from Britain and mainland Europe. The experts discovered 23 distinct Irish genetic groups separated by geography. 

The groups were found to be the most discernible in western Ireland, but less prominent in the east. In eastern Ireland,  historical migrations have eliminated the genetic divisions.

Genetic contributions from British people were found to drop off in populations to the west. Genetic input from Europe revealed the timeline of the historical migrations of the Norse-Vikings and the Anglo-Normans to Ireland, and these dates were consistent with historical records.

“The long and complex history of population dynamics in Ireland has left an indelible mark on the genomes of modern inhabitants of the island,” said study co-author Russell McLaughlin. 

“We have shown that, using only genetic data, we can accurately reconstruct elements of this past and demonstrate a striking correlation between geographical provenance and genetic affinity. Understanding this fine-grained population structure is crucially important for ongoing and future studies of rare genetic variation in health and disease.”

The study is published in <a href="http://journals.plos.org/plosgenetics/">PLOS Genetics</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

Irish genetic patterns rooted in historical migrations

Researchers at Trinity College Dublin have taken a closer look...

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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?

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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

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

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



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



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



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



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



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



Video Credit: Johns Hopkins&nbsp;



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



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

Interactive map of the universe includes 200,000 galaxies

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



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



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



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



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



Video Credit: ESA&nbsp;&nbsp;



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



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

Lesotho: Africa's "Kingdom in the Sky"

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



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



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



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



Video Credit: ESA&nbsp;



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



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

The city of Dublin on Ireland's east coast

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



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



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



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



Video/ Image Credit: ESA



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



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

The province of Zaragoza in northeast Spain

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Today’s Video of the Day from <a href="https://earthobservatory.nasa.gov/">NASA Earth Observatory</a> reveals the evolution of the Columbia Glacier in southeastern Alaska. Columbia is among the fastest shrinking glaciers in the world, and the video documents its rapid retreat over the years.&nbsp;



Columbia Glacier is a large, multi-branched calving glacier that flows out of the Chugach Mountains to the Prince William Sound.&nbsp;



According to USGS, Columbia had a long history of stability prior to 1980, with a length 41 miles, and small, short-lived advances or retreats.



In the years since 1980, however, satellite images have captured Columbia’s alarming retreat. By using false-color images, scientists can distinguish between snow and ice, open water, vegetation, and rocky debris on the glacier’s surface.



The series of false-color images featured in today's video were acquired over the span of 35 years. You can see that by 2021, the glacier’s main branch had retreated about 15 miles from its initial position.



The Columbia Glacier has also lost more than 50 percent of its volume, mostly due to calving. <a href="https://www.earth.com/video/nasa-reveals-3d-visual-of-an-atmospheric-river/">NASA</a> reports that while climate change likely started the retreat, mechanical processes kept the disintegration going.



The NASA images are provided by Jesse Allen, Robert Simmon, Joshua Stevens, and Lauren Dauphin using data from Landsat satellites, from the U.S. Geological Survey, and data from MODIS on NASA’s Terra satellite. The structure of Columbia’s moraine played a large role in the stability of the glacier before 1980. 



Like other tidewater glaciers, the Columbia built up a moraine over time, and the mixture of ice and rock functioned like a dam keeping out the sea. It was supported on one end by the shoreline and by the underwater terminal moraine at the other.



Video Credit: NASA Earth Observatory/&nbsp; NASA’s Scientific Visualization Studio



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



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The rapid retreat of the Columbia Glacier

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



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



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



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



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



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



Video &amp; Image Credit: ESA



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



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

The Pyrenees Mountains in southwest Europe

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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

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