08/21/26

The ancient Roman doctrine guiding modern environmental fights

Scenic view of Mackinac Bridge spanning over the water on a cloudy day, framed by greenery.
The Mackinac Bridge in Michigan. Credit: Shutterstock

state of science iconThis story is part of The State of Science, a series featuring science stories from public media journalists across the United States. It features reporting by Vivian La, a climate solutions reporter for Interlochen Public Radio and Grist in Northern Michigan. 


A controversial pipeline project in Michigan has been stuck in legal limbo for years. But this month, the Michigan Supreme Court sided with environmentalists and leaned on an ancient legal framework: the public trust doctrine.

This doctrine, which dates back to the Roman Empire, says that natural resources, like water, belong to the public, and development must do no harm. Legal experts say this argument is cropping up more and more in climate and environmental lawsuits. Joining Flora to get into the details are environment reporter Vivian La, and law professor Oday Salim.


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Segment Guests

Vivian La

Vivian La is the climate solutions reporter for Interlochen Public Radio and Grist in Northern Michigan.

Oday Salim

Oday Salim is director of the Environmental Law & Sustainability Clinic and a co-director of the Environmental and Energy Law Program at the University of Michigan Law School.

Segment Transcript

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