2017 on track for heat records

From Climate Central: Through the end of September, 2017 is the third hottest year on record in the U.S. and the second hottest on record globally. These figures are even more impressive in the absence of an El Niño, which gives a small boost in average global temperatures. This is further evidence that the observed long-term warming of the globe is from the buildup of greenhouse gases in the atmosphere. The U.S. will likely finish 2017 as the third hottest year since scientists began recording temperatures in the 1890s. If that holds true, then five of the 10 hottest years…