A large majority of states will face an increased threat of inland flooding by mid-century.
Since the first Earth Day in 1970, the average annual temperature in every state has climbed.
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.
Human-caused climate change is creating more coastal flood days in the U.S.
Record warm November continues the trend of a record hot 2015.
2015 marked the first time since recordkeeping began that the global average temperature climbed to more than 1°C (1.8°F) above pre-industrial levels.