The shrinkage continues, the sea level rises. We are all ion peril.
The recent loss of sea ice in the Arctic is greater than any natural variation in the past 1½ millennia, a Canadian study shows. "The recent sea ice decline … appears to be unprecedented," said Christian Zdanowicz, a glaciologist at Natural Resources Canada, who co-led the study and is a co-author of the paper published Wednesday online in Nature. "We kind of have to conclude that there's a strong chance that there's a human influence embedded in that signal."
In September, Germany's University of Bremen reported that sea ice had hit a record low, based on data from a Japanese sensor on NASA's Aqua satellite. The U.S. National Snow and Ice Data Center, using a different satellite data set, reported that the sea ice coverage in 2011 was the second-lowest on record, after the record set in 2007.