Arctic’s year of crazy extremes as warming hits high

Seth Borenstein
Associated Press

Washington — A new report says warming at the top of the world has gone into overdrive, happening twice as fast as the rest of the globe and extending unnatural heating into fall and winter.

In its annual Arctic Report Card, the National Oceanic and Atmospheric Administration Tuesday tallies record after record of high temperatures, low sea ice, shrinking ice sheets and glaciers.

Study lead author Jeremy Mathis, NOAA’s Arctic research chief, said it shows long-term Arctic warming trends deepening and becoming more obvious, with a disturbing creep into seasons beyond summer when the Arctic usually rebuilds snow and ice.

NOAA’s report, written by 61 scientists in 11 countries, said air temperature over the Arctic from October 2015 to September 2016 were 3.6 degrees warmer than the 1981-2010 average.