2012-09-19. Ending Its Summer Melt, Arctic Sea Ice Sets a New Low That Leads to Warnings

posted Sep 21, 2012, 1:18 PM by Lisa Ou
| by Justin Gillis, The NY Times. An article relevant to GSS Climate Change chapter 8. Excerpt: The drastic melting of Arctic sea ice has finally ended for the year,...but not before demolishing the previous record — and setting off new warnings about the rapid pace of change in the region. ...The apparent low point for 2012 was reached Sunday, according to the National Snow and Ice Data Center, which said that sea ice that day covered about ... 24 percent, of the surface of the Arctic Ocean. The previous low, set in 2007, was 29 percent. ...The sea ice is declining much faster than had been predicted in the last big United Nations report on the state of the climate, published in 2007. The most sophisticated computer analyses for that report suggested that the ice would not disappear before the middle of this century, ....  James E. Hansen, a prominent NASA climate scientist, said ...“The scientific community realizes that we have a planetary emergency,” Dr. Hansen said. “It’s hard for the public to recognize this because they stick their head out the window and don’t see that much going on.” ... the disappearance of summer ice cover replaces a white, reflective surface with a much darker ocean surface, allowing the region to trap more of the sun’s heat, which in turn melts more ice…..… Read the full article: http://www.nytimes.com/2012/09/20/science/earth/arctic-sea-ice-stops-melting-but-new-record-low-is-set.html?nl=todaysheadlines&emc=edit_th_20120920