The use of poisonous chemicals, draining of streams, illegal clearing of trees, and grading by marijuana farms is having a major negative impact on California wildlife. Polluted streams are threatening endangered coho salmon. The rare fisher is being poisoned by rodencides that are used to keep animals from eating marijuana plants.
With federal law still considering marijuana illegal and California’s medical marijuana industry basically unregulated there is no oversight over the marijuana farms and their practices. Marijuana farms are responsible for the polluting of California watersheds through the use of fertilizers, soil amendments, miticides, rodenticides, fungicides, plant hormones, diesel fuel, human waste. and even thei llegal use of the insecticide carbofuran, which is lethal to humans and banned in other countries. Learn more at: Pot farms wreaking havoc on Northern California environment – latimes.com.