Global warming is a hot topic that shows little sign of cooling down. Earth`s climate is changing, but just how it`s happening, and our own role in the process, is less certain.

Check out these fast facts and pictures for a snapshot of Earth`s evolving climate.

• There is little doubt that the planet is warming. Over the last century the average temperature has climbed about 1 degree Fahrenheit (0.6 of a degree Celsius) around the world."

More at National Geographic... Global Warming Fast Facts

http://news.nationalgeographic.com/news/2004/12/1206_041206_global_warming.html