Climate change -- September 20, 2013 at 6:57 PM ET
NASA satellites record 6th lowest arctic ice extent on record
This summer's sea ice minimum in the Arctic is still the sixth lowest extent of the satellite record and is 432,000 square miles (1.12 million square kilometers) lower than the 1981-2010 average, roughly the size of Texas and California combined. The ice cap covering the Arctic Ocean shrinks and expands with the passing of the seasons, melting in the summer and refreezing during the long, frigid Arctic winter. This year, cooler weather in the spring and summer led to a late start of the melt season and overall less melt.
The PBS NewsHour documented life in the changing arctic this week in our series, Coping with Climate Change: Arctic Thaw.