Global Warming Fast Facts

Global Warming Fast Facts

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

Ocean "Conveyor Belt" Sustains Sea Life, Study Says

Ocean "Conveyor Belt" Sustains Sea Life, Study Says:

An estimated three-quarters of all marine life is maintained by a single ocean-circulation pattern in the Southern Hemisphere that pulls nutrient-rich waters from the deep ocean, brings them to the surface, and distributes them around the world.

'This is really something,' said Jorge Sarmiento, a professor of atmospheric and ocean sciences at Princeton University in New Jersey. Sarmiento made the discovery using sophisticated computer models."