Story perspectives

Illegal Cannabis Farms Threaten California Wildlife and Ecosystems

2/10/2026

Summary

Story summary

Illegal cannabis farms in California forests are harming wildlife and ecosystems, according to ecologists at the Integral Ecology Research Center.
The Integral Ecology Research Center reports nearly 7,000 abandoned grow sites that leach pollutants into soil and streams.
The U.S. Forest Service lacks sufficient resources for cleanup.
Critics say cleanup remains insufficient, with 587 sites partially addressed.
Mike Levin, a Carlsbad Democrat, noted the unusual bipartisan cooperation needed to tackle the issue.

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Story summary

Illegal cannabis farms in California forests are harming wildlife and ecosystems, according to ecologists at the Integral Ecology Research Center.
The Integral Ecology Research Center reports nearly 7,000 abandoned grow sites that leach pollutants into soil and streams.
The U.S. Forest Service lacks sufficient resources for cleanup.
Critics say cleanup remains insufficient, with 587 sites partially addressed.
Mike Levin, a Carlsbad Democrat, noted the unusual bipartisan cooperation needed to tackle the issue.