Climate change is affecting the frost-free season in these cities, which also affects the allergy season.
U.S. sales of plug-in electric cars increased by a factor of 8 from 2011 to 2016
Transportation recently overtook electricity generation as the biggest source of greenhouse gases in the U.S.
June 2016 was the 14th consecutive month of record heat for the globe.
The average number of large wildfires burning across the Western U.S. each year has tripled from the 1970s to the 2010s.
Higher levels of carbon dioxide in the atmosphere lead to a more acidic ocean.
June 1 marks the first day of the Atlantic hurricane season.
A large majority of states will face an increased threat of inland flooding by mid-century.