An amazing 26-second video depicting how temperatures around the globe have warmed since 1880.
The currents around the equator in the Pacific Ocean are cooler than average this year, which means we are experiencing the phenomenon known as La Niña. This can bring good weather conditions, or poor ones, depending on where you live and your point of view. Dr. Heidi Cullen explains.
Dr. Heidi Cullen has a look behind the numbers of the just-released NOAA temperature analysis, and reports on the 2010 hurricane season as it passes the midway mark.
NOAA's annual climate report shows we live in a warming world.