The number of days with more than 3+ inches of rain is increasing in the U.S.
Extreme weather is happening more often in a warming world, especially in the past few years.
Higher temperatures from climate change mean more evaporation, which means more rain.
Climate change affects hurricanes by energizing them in a few important ways.
While Harvey was the most damaging weather event this summer, there were other extremes in the U.S.
See how the summer temperatures and rainfall compared to normal this year in these cities.
Hurricane Matthew threatens the Southeast through this weekend.
Atlantic buoys have warmed 2°-4°F in the last 30 years.