Explore top IL risks:

Stagnant air undermines progress torward clear air in Chicago.

Learn about Illinois warming since the 1st Earth Day.

More than 310,000 people living Illnois are especially vulnerable to extreme heat. 

By 2050, Illinois is projected to see a ten-fold increase in the average number of dangerous heat days a year, from 5 to nearly 50 days.

By 2050, the typical number of heat wave days in Illinois is projected to increase from 10 to more than 60 days a year.

Peoria is the 22nd fastest-warming city in the U.S.

Illinois is projected to see a 40 percent increase in its index of the severity of widespread drought by 2050.

59 percent of meterological stations in Illinois are getting more winter precipitation as rain than snow.

In Illinois, there are more than 380,000 people living in areas at an elevated risk of inland flooding.

Trend in the number of days with 3 or more inches of rain across the United States. 

What's Happening in Your Region?

More Stagnant Air on the Rise, Upping Ozone Risk

With stagnant air now occurring more frequently in much of the country, the combination of heat and stagnant air are primed to counteract efforts to reduce ground-level ozone pollution and continue to put thousands of lives at risk every year... More


Warming Could Bring More Downpours Like OKC’s

Heavy downpours are something Oklahoma, along with the rest of the nation, could expect more of as the world warms and the atmosphere sucks up more moisture... More

Summer Nights Are Heating Up Across the U.S.

Global warming often conjures scenes of sweaty, scorching summer days, but daytime temperatures aren’t the only thing expected to rise in a warming world. Nights, too, are expected to get sultrier, with overnight lows not dropping as much as they used to. More


Southwest, Central Plains Face ‘Unprecedented’ Drought

Climate change is creating an “unprecedented” risk of severe drought in the Southwest and Central Plains... More

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