Wow.
"Rapid Arctic sea ice loss could triple the rate of warming over northern Alaska, Canada and Russia and trigger permafrost thawing that unleashes extremely potent greenhouse gases, according to a new study.
Our study suggests that, if sea ice continues to contract rapidly over the next several years, Arctic land warming and permafrost thaw are likely to accelerate," lead author David Lawrence of the National Center for Atmospheric Research said in a statement.
Arctic sea ice extent shrank to a record low last summer, more than 30 percent below average, while air temperatures over land in the western Arctic were unusually warm from August to October — reaching more than 4 degrees F above average.
Researchers used a climate model to study whether the two events were related, and found that when sea ice melts quickly, the rate of Arctic land warming is 3.5 times greater than the average 21st century warming rates predicted in climate models. "LINK
Researchers used a climate model to study whether the two events were related, and found that when sea ice melts quickly, the rate of Arctic land warming is 3.5 times greater than the average 21st century warming rates predicted in climate models. "LINK
No comments:
Post a Comment