For scientists studying summer sea ice in the Arctic, it's not a question of "if" there will be nearly ice-free summers, but "when." And two scientists say that "when" is sooner than many thought -- before 2050 and possibly within the next decade or two.
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/U...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/U...