What Is The Difference Between Global Warming and Climate Change?

  • Published: December 7th, 2009

The phrases "global warming" and "climate change" are technically different, but the way most people use them - including lots of climate scientists - they mean pretty much the same thing.

How Do We Know It Is Not a Natural Cycle?

  • Published: November 6th, 2009

When scientists look at climate variations in the past, they don't see anything like today's warming.

What Is the Greenhouse Effect?

  • Published: November 6th, 2009

It's why global warming is happening, and why scientists are so worried about rising levels of carbon dioxide and other gases generated by agriculture, transportation and industry