Climate Change Basics: 
This Web site, offered by the U.S. Environmental Protection Agency, provides a wealth of basic information on climate change, including definitions, policies and tips on what you can do.

Climate Change 101 (PDF): 
Understanding and responding to Climate Change: This Pew Center on Global Climate Change report provides the basics of climate change including science and impacts, adaptation, technology solutions, cap and trade, business solutions, international, state and local actions.

Global Warming Frequently Asked Questions: 
Encyclopedia of Earth provides answers to frequently asked questions on global warming including greenhouse gases and the greenhouse effect, El Niños and Global Warming, changes in the hydrological cycle and atmospheric/oceanic circulation, climate variability, and sea level rise.

Understanding and Responding to Climate Change: 
National Academy of Sciences booklet discusses climate change and responses in 28 pages of easy to read text.

Weather and Climate Basics: National Center for Atmospheric Research is a research organization that seeks to better understand our atmosphere and how weather and climate affect the Earth. The website allows you to explore varies climate and weather topics with multiple levels of explanations to allow you to delve as deep into the topic as you wish to go.

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