The Arctic’s Alarming sea change

Arctic sea ice plummeted to the lowest levels seen in the last 30 years, shattering all previous record lows, scientists announced on Monday after completing a full review of the entire melt season. The average sea ice extent for this September (typically the month when sea ice reaches its lowest extent) was only 1.65 million square miles—23 percent lower than the previous record low set in September 2005, the National Snow and Ice Data Center (NSIDC) said.