If the first three months of 2016 are any indication, meeting the 1.5°C challenge will be increasingly difficult.
February 2016 was the hottest February on record.
An early spring can disrupt plant & animal behaviors and make it more difficult on farming.
On the current greenhouse emissions path, spring may start an average of three weeks earlier by 2100.
Record warm November continues the trend of a record hot 2015.
For most of the country, winter is warming faster than the other three seasons.
Increasing greenhouse gases are the overwhelming reason why 2015 will be the hottest year on record.
Thanksgiving weather is variable from year to year, but Novembers are trending warmer across the U.S.