Increasing greenhouse gases are the overwhelming reason why 2015 will be the hottest year on record.
The unusual warmth that started this fall is extending into November.
Through the first nine months of the year, 2015 has been the hottest on record globally.
Summer seems to have lasted a little longer in much of the country this year.
Ten of the lowest annual Arctic sea ice volume minimums have been in the last 11 years.
Several cities in the Western U.S. had their hottest summer on record.
An updated Climate Central analysis shows large wildfires are becoming more common and destructive.
Daily record highs are outpacing record lows across the U.S. due to climate change.