Policy Based Evidence Making
Last winter had the largest sea ice extent in the last six years, the largest North American snow extent on record, and the second largest northern hemisphere snow extent on record. On one day in February, at least 49 US states had snow cover. Northern hemisphere albedo was very high last winter.
What did NOAA and the Army Corps of Engineers have to say about that? They ignored the evidence and went straight to the press with unsupportable remarks.
Last winter’s massive snowstorms that struck the Northeast and Mid-Atlantic states were tied to higher Arctic temperatures, climate scientists reported Thursday.
“As we lose more sea ice it’s a paradox that warming in the atmosphere can create more of these winter storms,” Overland said at a news briefing.
There is a powerful connection between ice cover and air temperatures, Richter-Menge explained. When temperatures warm, ice melts. When reflective ice melts it reveals darker surfaces underneath, which absorbs more heat. That, in turn, causes more melting “and on the cycle goes,” she said.
Another effect of the increasing temperatures is that the sea ice extent is dropping to one of the lowest levels on record.
Had there been a lack of snow and sea ice last winter, these same people would have undoubtedly blamed that on global warming. The result of the research is predetermined – evidence is irrelevant.
The reason very the cold and snow last winter was the record low Arctic Oscillation.