This image made available by NASA shows the amount of summer sea ice in the Arctic on Sept. 16, at center in white, and the 1979 to 2000 average, illustrated by the yellow line.

( U.S. National Snow and Ice Data Center / Associated Press )

One of these days there’ll be more ice in freezer trays than in the Arctic, and one Cambridge professor figures it’ll be all gone by the next presidential election. NOAA reported that 2012 saw the first-ever melting over the entire Greenland ice sheet. Still, if we’re willing to change our ways, we might slow this process and save some of the world’s most vital habitat (and Santa’s ZIP Code) by rerouting commercial flights around the pole instead of over it. You know what this means, of course? Longer flights, and more $8 peanuts.,0,1859915.photogallery