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Report: Heat, pollution and wildfires expected to make Indiana's air quality worse in 2054

A map shows the expected difference in air quality days from 2024 to 2054 that are "orange" — unhealthy for sensitive groups — or worse due to wildfire smoke and ozone.
Courtesy of First Street Foundation
First Street Foundation's Jeremy Porter said 30 years from now, air quality in the U.S. could look as bad as it did in 2004 due to climate change.

Most of Indiana is expected to experience one to seven more days of poor air quality in 2054. That’s according to a new report by the First Street Foundation, a nonprofit risk mitigation research group.

Extreme heat, drought and wildfires are undoing air quality gains from the Clean Air Act. The Environmental Protection Agency estimates controlling pollution through the Clean Air Act prevents about 250,000 premature deaths a year.

Jeremy Porter is the head of climate implications research for First Street Foundation. He said 30 years from now, air quality in the U.S. could look as bad as it did in 2004 due to climate change.

“So essentially over the next 30 years we’re going to be wiping away about 20 years of progress that we made associated with reducing pollutants in the air and increasing air quality," Porter said.

READ MORE: Why do some people think that climate change isn’t happening?

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While wildfires out West are driving most of this change, the poor air quality we’ll see in Indiana and the Great Lakes region is mostly due to ozone — also known as smog.

It forms from the combination of sunlight and pollution from things like cars and industrial plants. Smog can make it more difficult to breathe and aggravate lung and heart conditions.

First Street Foundation’s forecasts only take into account wildfire models in the U.S. — which means it’s likely smoke from wildfires in Canada are underestimated in the report.

Rebecca is our energy and environment reporter. Contact her at or follow her on Twitter at @beckythiele.

Rebecca Thiele covers statewide environment and energy issues.