Map showing drought conditions in the western United States in 2020

Does Less Pollution Mean Less Precipitation?

IIHR researchers Wei Zhang and Gabriele Villarini (IIHR director) have published research linking urban sprawl to an increase in rainfall and flooding during Hurricane Harvey.
A seated man near the Iowa River in fall
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What’s in the Water?

Greg LeFevre, who joined IIHR in January as an assistant research scientist, is particularly interested in what becomes of certain contaminants as they move through the final stages of the water cycle. LeFevre studies biotransformation—or the chemical alteration—of contaminants in aquatic environments.
A portrait of Kathryn Klarich wearing a blue scarf
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Gravitating Toward the Water

Klarich, a new member of the Cwiertny Lab, researches neonicotinoids, a class of insecticide that was found to be present in the Iowa River by the U.S. Geological Survey and IIHR researchers in 2014.
Johnathan Culpepper stands in a lab wearing purple gloves and a lab coat
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My Lab, My Canvas

Johnathan Culpepper, along with most of his family, was born with a love for art. And he’s quite good at it, even selling paintings to fund his undergraduate education at Medgar Evers College of the City University of New York (MEC-CUNY). However, growing up on the coast in Trinidad and Tobago also helped nurture a love for the environment—and for science.