The EPA maintains a Web site at http://www.epa.gov.
The EPA has a very informative Web site, "The Plain English Guide to the Clean Air Act," at http://www.epa.gov/oar/oaqps/peg_caa/pegcaain.html.
The EPA Web site for the Clean Water Act is at http://www.epa.gov/region5/water/cwa.htm.
For information about TSCA's programmatic review of new chemicals, access http://www.epa.gov/opptintr/newchems/accomplishments.htm.
You can get more information on the Kyoto Protocol at http://www.iea.org/ieakyoto/index.htm.