An aerial view of a medical marijuana grow. Researchers used both satellite and field studies to determine how many grows and plants were in four local watersheds. (Submitted by California Department of Fish and Wildlife Scientist Scott bauer)
Links
[1] http://www.times-standard.com/localnews/ci_25732656/study-shows-medical-marijuana-grows-drying-local-watersheds
[2] http://www.rethinkpot.org/tags/environment
[3] http://www.rethinkpot.org/tags/water
[4] http://www.rethinkpot.org/tags/california