Arctic cyclones more common than previously thought

From 2000 to 2010, about 1,900 cyclones churned across the top of the world each year, leaving warm water and air in their wakes -- and melting sea ice in the Arctic Ocean. That's about 40 percent more than previously thought, according to a new analysis of these Arctic storms.

Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/h...