Other
100 Years of Manhattan's Garbage
"What could you smell on the streets of New York in 1890?" An interesting question that this paper answers well by examining an exhibit at the New York Public Library entitled "Garbage: The History and Politics of Trash in New York City."
US Geological Survey
Us Geological Survey: Bioremediation: Nature's Way to a Cleaner Environment[pdf]
Excellent information provided by the U.S. Geological Survey.
Bio Topics
Bio Topics: Water
An interactive worksheet and notes that look at the water cycle, domestic water supply, sewage disposal, water pollution, and air pollution. Useful for student review of material.