Climate

A cemetery sitting on melting permafrost tundra at the village of Quinhagak on the Yukon delta in Alaska. The scientists’ findings offer a further sign of a climate emergency. Photograph: Mark Ralston/AFP/Getty Images

CLICK HERE - STUDY - Threshold sensitivity of shallow Arctic lakes and sublake permafrost to changing winter climate

theguardian.com - reuters - Matthew Green - June 18, 2019

Permafrost at outposts in the Canadian Arctic is thawing 70 years earlier than predicted, an expedition has discovered, in the latest sign that the global climate crisis is accelerating even faster than scientists had feared.

A team from the University of Alaska Fairbanks said they were astounded by how quickly a succession of unusually hot summers had destabilised the upper layers of giant subterranean ice blocks that had been frozen solid for millennia.

Icebergs off coast of Greenland. - Credit: Kertu / Adobe Stock

CLICK HERE - STUDY - PNAS - Ice sheet contributions to future sea-level rise from structured expert judgment

cnn.com - by Sareena Dayaram - May 21, 2019

Global sea levels could rise more than two meters (6.6 feet) by the end of this century if emissions continue unchecked, swamping major cities such as New York and Shanghai and displacing up to 187 million people, a new study warns.

The study, which was released Monday, says sea levels may rise much faster than previously estimated due to the accelerating melting of ice sheets in both Greenland and Antarctica.

The international researchers predict that in the worst case scenario under which global temperatures increase by 5 degrees Celsius (9 degrees Fahrenheit) by 2100, sea levels could rise by more than two meters (6.6 feet) in the same period -- double the upper limit outlined by the UN climate science panel's last major report.

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CLICK HERE - EU Overshoot Day - Living Beyond Nature’s Limits - May 10, 2019 (19 page .PDF report)

reuters.com - by Jan Strupczewski - May 8, 2019

The European Union’s 28 countries consume the Earth’s resources much faster than they can be renewed, and none of them has sustainable consumption policies, a report released on Thursday said, as EU leaders meet to discuss priorities for the next five years.

“All EU countries are living beyond the means of our planet.

The EU and its citizens are currently using twice more than the EU ecosystems can renew,” the report by the World Wide Fund (WWF) and Global Footprint Network said.

Greenhouse gases, which have been frozen below the soil for centuries, have already begun to escape. Photograph: John Mcconnico/AP

CLICK HERE - STUDY - Climate policy implications of nonlinear decline of Arctic land permafrost and other cryosphere elements

Study shows how destabilised natural systems will worsen man-made problem

theguardian.com - by Jonathan Watts - April 23, 2019

The release of methane and carbon dioxide from thawing permafrost will accelerate global warming and add up to $70tn (£54tn) to the world’s climate bill, according to the most advanced study yet of the economic consequences of a melting Arctic.

If countries fail to improve on their Paris agreement commitments, this feedback mechanism, combined with a loss of heat-deflecting white ice, will cause a near 5% amplification of global warming and its associated costs, says the paper, which was published on Tuesday in Nature Communications.