Matt Harris

The U.S. Forest Service is spraying glyphosate (Roundup) across tens of thousands of acres of national forests this spring to support commercial timber production. Following wildfires, forests naturally regenerate with diverse shrubs, wildflowers, and wildlife. However, a recent investigation reveals that the Forest Service and private logging companies are routinely applying the herbicide to eliminate competing native vegetation, favoring commercially valuable species such as Douglas fir and sugar pine. This practice has created large areas with significantly reduced biodiversity, often described as "dead zones", where insect, bird, and plant populations have sharply declined. Glyphosate, classified by the World Health Organization as a probable human carcinogen, has seen its use in California national forests quintuple over the past two decades, reaching a record 266,000 pounds in 2023. Local communities, environmental groups, and residents are raising concerns about potential impacts on water quality, endangered species (including salmon and rare foxes), and public health. Critics argue that prioritizing industrial timber production over ecological diversity conflicts with the broader mission of national forests as public lands. The issue has intensified debates over forest management, balancing economic interests with long-term environmental and community health.