Dr. Jeff Masters
Published: September 22, 2015
We’re in the midst of a landmark period for our changing climate: the warmest year thus far in the warmest decade in global records. This is also a crucial time for dialogue on climate change, as we approach a major UN meeting in Paris this December. How have emissions of carbon dioxide evolved over the last 45 years, and how will that shape the negotiations in Paris?
A burst of late-season loss over the last several weeks has put the Arctic Ocean’s ice cover within reach of the lowest extent observed in any year except 2012. In the tropics, a new system moving off Africa could become a depression over the next five days, and Tropical Storm Fred is barely hanging on to life, while Hurricanes Jimena and Ignacio and Typhoon Kilo continue to prowl the Pacific.
August 2015 was Earth's hottest August on record, and the Northern Hemisphere summer period of June-July-August was the hottest summer since record keeping began in 1880, said NOAA. NASA rated August 2015 as the 2nd warmest August on record. August 2015's warmth makes the year-to-date period (January - August) the warmest such period on record, according to both NOAA and NASA.