Do 97% of Climate Scientists Really Agree?
If playback doesn't begin shortly, try restarting your device.
Share
Include playlist
An error occurred while retrieving sharing information. Please try again later.
Switch camera
0:00
0:00
0:00
/
4:37
Live
An error occurred.
Try watching this video on www.youtube.com
, or enable JavaScript if it is disabled in your browser.