The amount of carbon dioxide in the atmosphere has a strong correlation with rising temperatures.
Foliage color and timing has been starting later, on average, in a warming world.
Compared with the median ice cover from 1981-2010, 2013's Arctic sea ice loss comes out to approximately 1.74 times the land area of Texas.
The peak of hurricane & tropical storm activity doesn’t usually come until Sept. 10. And, on average, there tend to be significantly more storms after the peak than before it.
Despite the recent slowdown in warming rate, this past decade was the world's warmest on record.
Scientists say increased CO2 emissions are making poison ivy worse.
As the graphic shows, people cause most wildfires. But lightning-ignited fires burn by far the most territory.
Record highs have outpaced record lows by a bigger margin each decade since the 1960s.