More CO2 means larger poison ivy plants and more toxic oil per plant.
As the climate warms, rising sea levels will mean more damage from hurricane storm surge.
The city recorded more than 7 inches of rain in 24 hours, the third-highest single day rainfall total for any day since record-keeping began in 1891.
Every state in the U.S. has warmed since the first Earth Day, although the rate of warming varies. Check out how much it’s warmed in your state.
Nationwide, the number of days with the most intense precipitation continues to climb.
If CO2 emissions continue at the current pace, pollen counts are projected to nearly double by 2060.
This year's sad California snowpack "obliterates" the previous record low.
Spring is arriving earlier across the U.S. by an average of three days.