Bloomberg:  Arctic sea ice shrank to the smallest area on record this year, covering 22 percent less of the ocean than the previous low in September 2005, U.S. scientists said. Sea ice covered 4.1 million square kilometers (1.6 million square miles) on Sept. 16, the National Snow and Ice Data Center in Boulder, Colorado said in a statement on its Web site, using a five-day rolling average. That’s 1.2 million square kilometers less ice than the previous record — or an area roughly the size …