  
|
| |||
 The National Academy of Sciences has concluded that climate research conducted from the late 1990s, which found the Northern Hemisphere was the warmest it has been in 2,000 years, was "likely" true. | MORE NEWS
| |||
| |
| © 2006 Cable News Network LP, LLLP. A Time Warner Company. All Rights Reserved. Terms under which this service is provided to you. Read our privacy guidelines. Contact us. |
 |
|
| 
External sites open in new window; not endorsed by CNN.com
Pay service with live and archived video. 
