The Greenhouse Effect Information and illustration on the green house effect.. whrc.org//?s=greenhouse+effect&submit=
Global Warming Student Guide A Student's Guide to Global Climate Change https://www3.epa.gov/climatechange/kids/
EPA Global Warming Site The EPA Global Warming Site focuses on the science and impacts of global warming or climate change, and on actions by governments... epa.gov/climatechange/index.html
Plate Tectonics This site explains the theory of plate tectonics. cotf.edu/ete/modules/msese/earthsysflr/...
Global Warming -- Research Issues To what extent does the Sun's variability affect and/or cause global climate change? solar-center.stanford.edu/sun-on-earth/glob...
Global Warming Unit This unit includes classroom activities to help students understand global warming and its possible effects on human beings. Middle-High school level commtechlab.msu.edu/sites/letsnet/noframes/...
Climate Change The Climate Change site focuses on the science and impacts of global warming or climate change, and on actions by governments, corporations, and individuals that help address global warming issues. The site also features climate change related news, events, publications, reports, presentations, and links to other sites. epa.gov/climatechange/index.html
Global Warming: U.S. EPA Student Center The earth�s climate is predicted to change because human activities are altering the chemical composition of the atmosphere through the buildup of greenhouse gases�primarily carbon dioxide, methane, and nitrous oxide. https://www.epa.gov/students