Upload

Loading icon Loading...

This video is unavailable.

Crossing 400: The Keeling Curve Reaches a Historic Milestone

Sign in to YouTube

Sign in with your Google Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to like OPRClimateChange's video.

Sign in to YouTube

Sign in with your Google Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to dislike OPRClimateChange's video.

Sign in to YouTube

Sign in with your Google Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to add OPRClimateChange's video to your playlist.

Published on Jul 2, 2013

Ralph Keeling, geochemistry professor at Scripps Institution of Oceanography, UC San Diego, talks about the @keeling_curve and a historic climate milestone: the carbon dioxide concentration in our atmosphere recently exceeded 400 ppm for the first time in human history. Dr. Keeling explains the consequences of this, outlines solutions, and addresses why time is of the essence. Produced by Scripps Institution of Oceanography, UC San Diego.  More info: keelingcurve.ucsd.edu.

Loading icon Loading...

Loading icon Loading...

Loading icon Loading...

The interactive transcript could not be loaded.

Loading icon Loading...

Loading icon Loading...

Ratings have been disabled for this video.
Rating is available when the video has been rented.
This feature is not available right now. Please try again later.

Loading icon Loading...

Loading...
Working...
Sign in to add this to Watch Later

Add to