Ecolotree helps clean our environment


Poplar trees
Poplar trees

Lou Licht, who received his PhD in the University of Iowa’s Department of Civil and Environmental Engineering, is using poplar trees to clean polluted water.

Licht started the Iowa-based company Ecolotree. This company installs forests of poplar trees near sites that leak pollutants. Through a process called phytoremediation, the roots of the poplar trees help filter some of the harmful pollutants, and keep them from contaminating the water and soil.

Ecolotree has worked with 110 sites in the U.S. and one in Europe.

Learn more about Licht and his company here.

On the Radio: Growing Trees, Cleaning Iowa


A view of a section of poplar trees that grow on Licht's land in North Liberty.

Listen to this week’s radio spot on Lou Licht, who uses trees to clean up the land, water and air. For more information on Licht, check out the Iowa Independent, or read this interview with him: The Accidental Capitalist.

Planting trees: A proven way to clean up Iowa’s land and water – and save money.

This is the Iowa Environmental Focus.

Iowa-native Lou Licht is the founder of Ecolotree, an engineering firm that uses trees to clean up toxic sites.

He’s the first person in the world to do so.

Ecolotree has cleaned up landfills, brown fields, and hazardous waste sites around the world.  The idea can also help curb farm runoff that pollutes Iowa’s rivers and streams.

Licht’s low-cost, quick-growing poplar trees could be a solution for many Iowa towns that need to upgrade their out-dated sewer systems.

It goes to show that sometimes you can save a little green by going green.

For more information, visit IowaEnvironmentalFocus.org.

I’m Jerry Schnoor with the University of Iowa Center for Global and Regional Environmental Research.

Thank you.