Global Warming 1880 2011

Global

Nasa has produced a graphic showing how the Earth has been

Earth's average surface

Global

Nine of the top ten warmest years in the modern meteorological record have occurred since the year 2000.

http://www.smartplanet.com/blog/thinking-tech/nasa-video-shows-

2011

http://earthobservatory.nasa.gov/IOTD/view.php?id=76975.

http://www.nasa.gov/topics/earth/features/

... the

Earth's

Graphic:

All planets change surface temperatures over time. Earth's surface

Global

A deeper look showing how our planet has

Five-Year Average

This is a 15-second animated line graph showing the 5-year

NASA says human-caused

This video shows Earth's

Visualization from NASA Goddard showing five-year