Data shows hurricanes marked an increase in overall destructive power since 1970, driven by an increase in ocean temperature.
The Power Dissipation Index for hurricanes has been on the rise since 1970, along with sea surface temperatures.
The probability of a tornado touchdown somewhere in the U.S. jumps to nearly 80 percent in May and nearly 90 percent in June.
April 2014 was the first month in human history with average CO2 levels above 400 ppm.
The contiguous U.S. has warmed 2.1°F since the first Earth Day in 1970.
Cherry blossoms now appear five days earlier, on average, than they did 80 years ago.
While this has been a snowy winter, the past 50 years have shown a trend of less overall spring snow cover in the Northern Hemisphere.
If global warming continues unabated, only 6 of the 19 previous host cities could host the Winter Games again by the 2080s.