Weakened 'Polar Vortex' Blamed For N. American Chill
Credit: Flickr
January 6, 2014

Via AFP:

The bitter chill gripping North America is a result of Arctic air that has spilled southwards, and global warming may be a cause, an expert said on Monday.

Arctic air is normally penned in at the roof of the world by a powerful circular wind called the polar vortex, said Dim Coumou, a senior scientist at the Potsdam Institute for Climate Impact Research (PIK) near Berlin.

When the vortex weakens, the air starts heading southwards, bringing exceptional snow and chill to middle latitudes.

The weather shift is also helped by changes in a high altitude wind called the jet stream.

This ...

Continue reading...

Can you help us out?

For nearly 20 years we have been exposing Washington lies and untangling media deceit, but now Facebook is drowning us in an ocean of right wing lies. Please give a one-time or recurring donation, or buy a year's subscription for an ad-free experience. Thank you.

Discussion

We welcome relevant, respectful comments. Any comments that are sexist or in any other way deemed hateful by our staff will be deleted and constitute grounds for a ban from posting on the site. Please refer to our Terms of Service for information on our posting policy.
Mastodon