This article discusses the effects of human activities on the interaction of ground water and surface water. Produced by the United States Geological Survey (USGS), this site provides solid textual content along with...

Tucked away within the numerous specialized subject libraries at the University of Washington is a gem known as the Elisabeth C. Miller Horticultural Library. The library has several main directives, including service to...

The author discusses energy conservation, and uses of renewable and nonrenewable energy sources in food production systems, from data and observations based on research conducted at the Land Institute.

This publication describes research, sponsored by the Land Institute, that compares energy subsidies to energy outputs (including food production) ratios of conventional agriculture and low-energy agriculture.

Environmental Protection Agency provides curricula, activities and links on a variety of environmental topics.