Barents Sea seems to have crossed a climate tipping point

Originally posted on Exposing the Big Game:
This is probably what a climate tipping point looks like—and we’re past it. JOHN TIMMER – 6/26/2018, 4:00 AM https://arstechnica.com/science/2018/06/barents-sea-seems-to-have-crossed-a-climate-tipping-point/ Enlarge / A cloud-covered Barents Sea, showing sea ice encroaching from the Arctic Ocean to the north. NASA Aqua-MODIS 182 Many of the threats we know are associated with climate change are slow moving. Gradually rising seas, a steady uptick in extreme weather events, and more all mean that change will come gradually to much of the globe. But we also recognize that there can be tipping points, where certain aspects of our climate system shift suddenly to new behaviors. The challenge with tipping points is that they’re often easiest to identify in retrospect. We have some indications that our climate has experienced them in the past, but reconstructing how quickly a system tipped over or the forces that drove the change can be difficult. Now, a team of Norwegian scientists is suggesting it has watched the climate reach a tipping point: the loss of Arctic sea ice has flipped the Barents Sea from acting as a buffer between the Atlantic and Arctic oceans to something closer to an arm of the Atlantic. Decades of data The Norwegian work doesn’t rely on any new breakthrough in technology. Instead, it’s built on the longterm collection of data. The Barents Sea has been monitored for things like temperature, ice cover, and salinity, in some cases extending back over 50…

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Tesla’s Mass Clean Energy Production as Response to Climate Change Surges in June

Originally posted on robertscribbler:
Surging wind, solar, electrical vehicle and battery storage production provide the world with the opportunity to start reducing annual carbon emissions in the near term. And one clean energy leader appears set to break new ground toward achieving that helpful goal. (Tesla appears set to achieve goals, squeeze shorts, and help make clean energy more accessible…

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Sponge-like Cambrian fossil discovery

Originally posted on Dear Kitty. Some blog:
From the University of Leicester in England: Strange sponge-like fossil creature from half a billion years ago June 19, 2018 Summary: A discovery of a new species of sponge-like fossil from the Cambrian Period sheds light on early animal evolution. Scientists have discovered the fossil of an unusual large-bodied sponge-like sea-creature from half a billion years ago. The creature belongs to an obscure and mysterious group of animals known as the chancelloriids, and scientists are unclear about where they fit in the tree of life. They represent a lineage of spiny tube-shaped animals that arose during the Cambrian evolutionary “explosion” but went extinct soon afterwards. In some ways they resemble sponges, a group of simple filter-feeding animals, but many scientists have dismissed the similarities as superficial. The new discovery by a team of scientists from the University of Leicester, the University of Oxford and Yunnan University, China, adds new evidence that could help solve the mystery. The researchers have published their findings in the Royal Society journal Proceedings of the Royal Society B. The Leicester authors are Tom Harvey, Mark Williams, David Siveter & Sarah Gabbott. The new species, named Allonnia nuda, was discovered in the Chengjiang deposits of Yunnan Province, China. It was surprisingly large in life (perhaps up to 50 cm or more) but had only a few very tiny spines. Its unusual “naked” appearance suggests that further specimens may be…

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Climate Change Indicated in Forced Migration of 1.7 Million from Mekong Delta

Originally posted on robertscribbler:
Global sea level rise caused by fossil fuel burning is an issue that is creating worsening impacts to cities, nations, and civilization itself. And according to recent reports out of Vietnam, 1.7 million people have migrated from the low-lying Mekong Delta region over the past decade. Primary causes included climate change and poverty. (Sea level rise…

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