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Warmer Current Is Carving Away Greenland Ice Sheet From Below, Scientists Find
The Greenland ice sheet is melting faster than ever recorded in modern history. New research finds that the world's second-largest ice deposit is not just melting from the surface but from below as well, which adds a new twist to consider when predicting global sea level rise.
The Arctic ice sheet stores large quantities of frozen water extending 1.7 million square kilometers (656,000 square miles) long, according to the National Snow and Ice Data Center. In recent years it has seen unprecedented melting — seven times faster today than in the 1990s — that is likely to be intensified by the climate crisis. Scientists estimate that if the Greenland Ice Sheet completely melted, sea levels would rise by about 20 feet.
Researchers have long known that surface melt occurs from exposure to the sun and rising temperatures, but Arctic scientists from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) in Germany have now determined that an underwater current of warmer water is carving a destructive path below the surface.
To come to their findings, the team took to the 79 North Glacier, a 50-mile-long "tongue" of floating ice that has slid into the ocean and floats on the surface while remaining connected to the land ice. In the last two decades the 79 North Glacier has seen dramatic loss of both its mass and thickness. The first-ever extensive ship-based survey of the ocean floor revealed an underwater current more than a mile-wide arriving from the Atlantic Ocean, bringing heat into contact with the glacier to accelerate its melting.
"The reason for the intensified melting is now clear," researcher Janin Schaffer said, according to EurekAlert!. "Because the warm water current is larger, substantially more warmth now makes its way under the ice tongue, second for second."
Schaffer and her team also found what is known as a bathymetric sill, which acts as a dam to water flowing over the seafloor. As water builds up against this barrier, it grows until eventually rushing over and coming into contact with the tongue, further melting the ice from below.
"The readings indicate that here, too, a bathymetric sill near the seafloor accelerates warm water toward the glacier. Apparently, the intensive melting on the underside of the ice at several sites throughout Greenland is largely produced by the form of the seafloor,"Schaffer said.
Writing in Nature Geoscience, the study authors add that similar effects were seen at other parts of the Greenland Ice Sheet as well. The researchers say that their findings may help to more accurately gauge the total amount of meltwater lost from the ice sheet each year.
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'How Dare You Put Our Lives at Risk': Pennsylvania Democrat Brian Sims Rips GOP Members for 'Coverup' of Positive COVID-19 Tests
Brian Sims, a Democratic representative in the Pennsylvania legislature, ranted in a Facebook Live video that went viral about the hypocrisy of Republican lawmakers who are pushing to reopen the state even though one of their members had a positive COVID-19 test.
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In another reversal of Obama-era regulations, the Trump administration is having the National Park Service rescind a 2015 order that protected bears and wolves within protected lands.
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By Linda Lacina
World Health Organization officials today announced the launch of the WHO Foundation, a legally separate body that will help expand the agency's donor base and allow it to take donations from the general public.
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Henry J. Kaiser Family Foundation
By Nicholas Joyce
The coronavirus has resulted in stress, anxiety and fear – symptoms that might motivate a person to see a therapist. Because of social distancing, however, in-person sessions are less possible. For many, this has raised the prospect of online therapy. For clients in need of warmth and reassurance, could this work? Studies and my experience suggests it does.
Telehealth Versus Traditional Therapy<p><a href="https://www.cigna.com/hcpemails/telehealth/telehealth-flyer.pdf" target="_blank">Private insurance companies</a> like Cigna and Aetna, have come around; they now provide coverage for what they see as a "legitimate" service. And <a href="https://www.prnewswire.com/news-releases/american-wells-2019-consumer-survey-finds-majority-of-consumers-open-to-telehealth-adoption-continues-to-grow-300906438.html" target="_blank">surveys show</a> consumers are receptive to telehealth counseling: no driving to an appointment, no searching for a parking space, no worries about childcare while they're away, no need to switch providers if they move, and no problem if the specialist happens to be far away.</p><p>Online therapy opens doors for clients who wouldn't otherwise seek help, <a href="https://www.worldcat.org/title/empirical-examination-of-the-influence-of-personality-gender-role-conflict-and-self-stigma-on-attitudes-and-intentions-to-seek-online-counseling-in-college-students/oclc/941976505" target="_blank">particularly patients</a> who feel stigmatized by therapy or intimidated by a stranger sitting across the room from them. Often, <a href="https://doi.org/10.1089/1094931041291295" target="_blank">people open up</a> more easily in telehealth sessions. Firsthand accounts have detailed <a href="https://www.romper.com/p/i-tried-online-therapy-for-a-month-this-is-what-happened-13630" target="_blank">positive experiences from consumers</a>.</p>
Overcoming Prejudices About Online Counseling<p>Now COVID-19 is forcing most traditional psychotherapists to adapt their practice to <a href="https://www.psychologytoday.com/intl/blog/expressive-trauma-integration/202003/covid-19-etherapy-in-times-isolation" target="_blank">online counseling</a>. After experiencing the medium, they are <a href="https://www.wecounsel.com/blog/why-every-therapist-in-private-practice-needs-a-telehealth-option/" target="_blank">overcoming their prejudices</a>. Many will convert some or all of their caseloads to telehealth after the pandemic ends. Most of our clients seem to be good with it: responding to a satisfaction survey, 85% of USF students strongly or somewhat agreed their telehealth experience was comparable to an in-person visit.</p><p>All this allows a continuity of care for clients that before was impossible; there is, however, a caveat. Because of the coronavirus, some of my clients at USF who live out-of-state have moved back home. That means, legally, I can no longer serve them. Even though they are still USF students, my license is valid only in Florida.</p><p>For telehealth to work effectively, our national system of licensing and regulation law needs to adapt. Although the federal government temporarily halted HIPAA regulations to promote telehealth during this time, not all states are allowing out-of-state practice. The coronavirus may not be here forever, but spring break and Christmas holidays always will. We need seamless telehealth across state lines.</p>
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As many parts of the planet continue to open their doors after pandemic closures, a new pest is expected to make its way into the world. After spending more than a decade underground, millions of cicadas are expected to emerge in regions of the southeastern U.S.
Kevin Frayer / Stringer / Getty Images
By Jessica Corbett
Even after the world's largest economies adopted the landmark Paris agreement to tackle the climate crisis in late 2015, governments continued to pour $77 billion a year in public finance into propping up the fossil fuel industry, according to a report released Wednesday.
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