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Friday, January 23, 2009

Seasonal Shift

It’s pretty well accepted that the increase in global temperatures due to human douchebaggery has mucked with the overall climate, but a new study out of UC Berkeley and Harvard suggests a very specific consequence. Namely, the planet’s seasons have shifted forward by roughly two days. At least over land, that is. The oceans don’t seem to be as affected, and that may be because the temperature increases over land have messed with the Northern Annular Mode, a pattern of atmospheric winds that directly relates to the onset and severity of the seasons. In the last fifty years, the coldest days of winter and the warmest days of summer have both shifted forward, effectively moving the rest of the seasons with them. This all might sound a little bit scary, but look on the bright side. Christmas in July might actually become a viable possibility. More details here.

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