The following list of web sites may prove useful for researching a variety of environmental problems. Be sure that you also use at least one encyclopedia and one books before you are through with your research.
Multnomah Library Envirnomental Science Research Sites
EPA Office of Air and Radiation
EPA Acid Rain
EPA Global Warming
EPA Air Polution
Envirnomental Defense
Envirnomental History Timeline
Earth Dog Reporter - Contest