The N Hemisphere’s Atmospheric Circulation Has Collapsed Creating a Persistent Polar Cyclone

By FishOutOfWater / DailyKos: 500mb heights Normal for May 21 to June 6; 1980-2010 Average 500mb heights for May 21 to June 6 2013 A sudden stratospheric warming split the polar vortex in two in mid-January. Since then, the northern hemisphere’s atmospheric circulation has been behaving very strangely. An area of extreme high pressure formed…

Arctic Ocean ‘acidifying rapidly’

BBC: The Arctic seas are being made rapidly more acidic by carbon-dioxide emissions, according to a new report. Scientists from the Arctic Monitoring and Assessment Programme (AMAP) monitored widespread changes in ocean chemistry in the region. They say even if CO2 emissions stopped now, it would take tens of thousands of years for Arctic Ocean chemistry to…