Encyclopedia of Earth
Encyclopedia of Earth: Ecotoxicology: Herbicide
Definition of herbicides, how they are used, their damage to the environment and to ecology, consequences to human health, use around the world, and the three classes of herbicides.
American Public Media
American Radio Works: The Legacy of Agent Orange
An overview of the how the herbicide Agent Orange has impacted, and still is impacting, the lives of people of Vietnam as well as the landscape of Vietnam.