Global Warmng: "An increase in the average temperature of the Earth's atmosphere, especially a sustained increase great enough to cause changes in the global climate."

Learn more about global warming and climate change by visitng these web sites:

• Climate Change - learn about global warming, climate change and the carbon cycle on the USA Environemental Protection Agency Kids pge.

• Kids Speak Out About Global Warming - Kids just like you tell us what they know about global warming and what they're doing to fight it. AOL Research & Learn Study-Buddy.

• Global Warming - Kids Page - Basic information on what global warming means, and how you can help to stop the process. Pew Center on Global Climate Change

• Hot Earth - Have you heard about how the world's getting hotter? Some people say it is. Some say it isn't. Who's right? And does it matter? Tiki the Penguin guides you through the answers.

• Global Warming is Hot Stuff - Learn about greenhouse gas, the effects and more. A good glossary of terms.

• 10 Tips for Helping to Fight Against Global Warming - simple ways that you can reduce the amount of energy you use each day from Scholastic.

• Global Warming - Global Warming and the Greenhouse Effect from World Almanac for Kids.

• Hole in the 'Zone - What's going on up there? What's eating the zone? EcoHealth helps figure it out.

• Global Warming FAQ - The National Oceanic and Atmospheric Administration answers the most common questions about Global Warming.

• Melting Away - Temperatures are rising worldwide. That's causing weather to change. It is also affecting wildlife. National Geographic for Kids explores how nature is being changed.

• Global Warming - Special Report - Time for Kids special section highlighting news, articles and resources on Global Warming.

• TUNZA for Children - Site from United Nations Environment Programme aiming to provide young people with information and tools on how to “treat Mother Earth with care” and how to Act for a better world. TUNZA for Youth offers resources for older kids.

• Global Warming for Kids - A "web portal" of web sites featuring global warming topics especially for kids.