91自拍论坛

Extreme weather links to warmer Arctic, researchers say

鈥淭his winter is a great example of what we can expect from climate change.鈥

With  and  experiencing bitter cold snaps and heavy snowfall over the past winter, climate scientists have recorded an exceptionally warm season in the Arctic Circle. Researchers say there is a strong link between the climate crisis marked by the Arctic temperature rises and extreme winter weather events.

鈥淭his winter is a great example of what we can expect from climate change,鈥 Judah Cohen, a climate scientist at Atmospheric and Environmental Research, the Guardian. 鈥淚n the US, we had the 鈥榖omb cyclone鈥 in January, followed by July-like warm weather in February that I鈥檇 never seen before.

鈥淎nd now we鈥檝e had a parade of powerful winter storms ... It鈥檚 mind boggling.鈥

Cohen鈥檚 research was by Nature Communications on March 13 just as the US east coast was hit by its third  in 10 days. CNN  the study 鈥渇ound that major winter storms were two to four times more likely when the Arctic is abnormally warm, compared to when it was abnormally cold鈥.

The latest severe weather followed some of the longest-lasting warm weather ever recorded in the Arctic Circle in the month of February, with more than 60 hours of above-freezing temperatures logged.

Common Dreams  that scientists had previously only observed the temperature climbing above freezing twice in February, both for short periods of time. 

The new research suggests that the polar vortex has been disrupted by the warming of the globe. Warming temperatures have weakened the low pressure system鈥檚 flow, climate scientists say, causing it to drift southward from the polar region 鈥 and to bring cold Arctic air along with it.

[Reprinted from .]

Like the article? Subscribe to 91自拍论坛 now! You can also  us on Facebook and  on Twitter.

You need 91自拍论坛, and we need you!

91自拍论坛 is funded by contributions from readers and supporters. Help us reach our funding target.

Make a One-off Donation or choose from one of our Monthly Donation options.

Become a supporter to get the digital edition for $5 per month or the print edition for $10 per month. One-time payment options are available.

You can also call 1800 634 206 to make a donation or to become a supporter. Thank you.