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Politics : Canada@The HotStove Club
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From: axial6/18/2019 9:06:01 PM
   of 1199
 
Reinforces past predictions that in 10 years, there will be global panic. Climate change has been consistently underestimated.

Scientists shocked by Arctic permafrost thawing 70 years sooner than predicted
  • Ice blocks frozen solid for thousands of years destabilized
  • ‘The climate is now warmer than at any time in last 5,000 years’
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THE PAPER:

Observed maximum thaw depths at our sites are already exceeding those projected to occur by 2090 under RCP 4.5.


Key Points
  • Observed thermokarst development in very cold permafrost at 3 monitoring sites along a 700 km transect in the Canadian High Arctic.
  • Rapid landscape response to above average summer warmth is due to limited thermal buffering from overlying ecosystem components and near-surface ground ice.
  • Change was greatest at Mould Bay where thawing index values were 240 % above historic normals causing ~90 cm of subsidence in 12 years.
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