As the Arctic warms and its ice disappears, more extreme atmospheric conditions are occurring, which are already causing more extreme weather in the US. From the beginning of 2013, Neven Acropolis reports at Climate Progress, two Sudden Stratospheric Warming events occurred, the latest of which led to the unusually early collapse of the Polar Vortex, polar winds that keep polar air in polar regions. This latest warming is also tied to an unusually strong high pressure area over Greenland, a blocking pattern that acts like an atmospheric stop sign for weather systems, says Andrew Freedman at Climate Central, allowing them to gather strength and tap into Arctic cold. This is resulting in extremely cold blizzards in the US. Freedman notes that, “Blocking patterns are often associated with extreme weather events, from heat waves like the one that occurred last March, to historic cold air outbreaks and blizzards.” And adds that several recent studies indicate climate change could be contributing to strong blocking patterns. Meanwhile, Acropolis notes, the current pattern of Arctic ice fracturing is very extensive and occurring earlier than expected, conditions that could accelerate Arctic summer melt further.
Join the swelling numbers of voters TELLING Congress they’ll vote for Clean Energy candidates here: http://signon.org/sign/we-are-the-clean-99?source=c.em.cp&r_by=487176 . This is an ongoing campaign (the next Congressional election is in 2 years!) so please, spread the word. It’s our way of telling Congress that a strong clean energy voting bloc is out there. This is how YOU can make a difference.
For more on Climate Change, check out my weekly column at the HuffingtonPost, Climate Change This Week : http://www.huffingtonpost.com/author/index.php?author=mary-ellen-harte
http://thinkprogress.org/climate/2013/03/23/1766011/ice-breaking-news-2013-arctic-freezing-season-not-what-its-cracked-up-to-be-literally/ Ice Breaking News: This Is Your 2013 Arctic Freezing Season On Crack See also: