Associated Press: Arctic sea ice this summer shrank to its second lowest level since scientists started to monitor it by satellite, with scientists saying it is another ominous signal of global warming.
The National Snow and Ice Data Center in Colorado said the sea ice reached its summer low point on Saturday, extending 1.6 million square miles (4.14 million square kilometers). Thats behind only the mark set in 2012, 1.31 million square miles (3.39 million square kilometers).
Center director Mark Serreze said...