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The Climate Crisis Is the First Truly Global Climate Shift in the Past 2,000 Years, Studies Confirm
The current climate crisis is unique in the last 2,000 years of history, a trio of papers has found, in that it is the only truly global climate shift during the last two millennia.
Previous anomalies like the Little Ice Age, when it was possible to skate on the Thames, were more regional in scope, while the warming trend at the end of the 20th century affected more than 98 percent of the planet, Reuters reported.
In contrast to pre-industrial #climate fluctuations, current, anthropogenic climate change is occurring across the whole world at the same time & is warming the planet faster than in the last 2,000 years: https://t.co/wYmpvpyg1c @CentreOeschger @nature @NatureGeosci @NatureNews pic.twitter.com/5if3Lq7Bi5— Universität Bern (@unibern) July 24, 2019
"The main takeaway is that climate variability in the contemporary period is very different than what's happened in the past 2,000 years," Columbia University climate scientist Nathan Steiger, who co-authored one of the papers published in Nature Wednesday, told Reuters. "This is definitely further evidence that fossil fuels and anthropogenic activity actually has fundamentally changed the climate," he added.
Some climate deniers have pointed to past climate shifts to argue that there is nothing new or human-caused about the current warming period. The Medieval Climate Anomaly warmed temperatures from 800 to 1200 AD and the Little Ice Age saw temperatures fall from the 1300s to the 1850s, but the new research shows that these and other events were much more localized than current climate change. None of them covered more than half the globe at any one time, according to The Guardian.
Based on 6 different probabilistic reconstruction methods using the PAGES2k proxy database, we show that Common Era climate epochs were not globally coherent phenomena. Warmth and cold happened in different places at different times.— Nathan Steiger (@njsteiger) July 24, 2019
In the past, researchers had taken evidence for these warming and cooling periods in Europe and North America and assumed they applied to the rest of the globe, the University of Bern explained in a press release. But for this week's papers, researchers consulted the PAGES (Past Global Changes) database of worldwide climate data from tree rings, ice cores, lake sediments and corals.
"It's true that during the Little Ice Age it was generally colder across the whole world," research team leader Raphael Neukom of the Oeschger Center for Climate Change Research at the University of Bern said, "but not everywhere at the same time. The peak periods of pre-industrial warm and cold periods occurred at different times in different places."
For example, the Little Ice Age was coldest in the Pacific in the 15th century, Europe in the 17th century and elsewhere in the 19th century, The Guardian reported.
"This paper should finally stop climate change deniers claiming that the recent observed coherent global warming is part of a natural climate cycle. This paper shows the truly stark difference between regional and localised changes in climate of the past and the truly global effect of anthropogenic greenhouse emissions," University College London climatology professor Mark Maslin told The Guardian.
The Nature paper was accompanied by a second, published in Nature Geoscience, that focused on the impacts of five large volcanic eruptions during the early 19th century that caused cooler temperatures, drought in Africa and the advance of glaciers in the Alps, the University of Bern further explained.
5 large volcanic eruptions in the early 19th century led to dry monsoon regions and growing glaciers in the Alps, according to a study led by the @CentreOeschger of the #unibern. https://t.co/0eBV0TdW7z #climate @NatureGeosci pic.twitter.com/oWAXo0fKcq— Universität Bern (@unibern) July 24, 2019
Because these eruptions occurred at the start of the industrial revolution, researchers say it is difficult to determine how volcanism interacted with the increasing burning of greenhouse gasses to impact climate at that time.
"It does sort of mask the effect of industrial processes, where they are starting to omit more CO2, because they counteract each other," Steiger told Smithsonian.com. "So volcanoes could cool, and humans would warm by the release of greenhouse gasses. It's tricky to parse out what's what."
This matters because international targets like the Paris agreement seek to limit warming to certain amounts above a pre-industrial norm.
"Given the large climatic changes seen in the early 19th century, it is difficult to define a pre-industrial climate, a notion to which all our climate targets refer," lead author and University of Bern climatologist Stefan Brönnimann said in the university release.
But what is clear is that today's warming is unprecedented during the study period. A final paper, also published in Nature Geoscience, concluded that the rates of warming documented in the second half of the 20th century were the fastest in 2,000 years.
That finding "highlights the extraordinary character of current climate change," Neukom told Smithsonian.com.
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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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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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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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