This Sept. 16 image released by NASA shows the amount of summer sea ice in the Arctic, at center in white, and the 1979 to 2000 average extent for the day shown, with the yellow line. Scientists say sea ice in the Arctic shrank to an all-time low of 1.32 million square miles on Sept. 16, smashing old records for the critical climate indicator.
Scientists view climate change as one of the world's most pressing long-term problems. But the issue has barely surfaced in the U.S. presidential race. President Obama has taken steps to address climate change during his time in office. Republican challenger Mitt Romney would not make it a priority in his administration.
In fact, as Romney stood on the stage to accept his nomination at the Republican National Convention, he used global warming as a laugh line.
Originally published on Wed October 17, 2012 2:05 pm
The United Nations' special envoy for Syria, Lakhdar Brahimi, is on his way to Syria's capital, Damascus, where he will hold talks with Syrian leaders about a proposal to call a cease-fire between government troops and rebel fighters. Brahimi has said he hopes the cease-fire will start next week, for the Eid al Adha holiday.