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