Want to watch better-quality PBS Video? Sign in to access higher-quality streaming!

By signing in, you are authorizing PBS to share your email address with your local PBS station to send you periodic communications about station events, services and support. Any other uses of your information by PBS are governed by PBS’s Privacy Policy.

Closed Captioning Settings


Captions look like this

Captions size

  • 15

Captions font family

Edge style

Captions color

Background color

Window color

Text Opacity

  • 100%

Background Opacity

  • 100%

Window Opacity

  • 0%
  • Save Settings
  • Reset


Biofuels Sustainability: A Biogeochemical Challenge - Ep....

  • Aired: 03/07/2008
  • 01:13:42
  • Rating: TV-G
Phil Robertson, Professor, W.K. Kellogg Biological Station, Michigan State University He talks about the different facets to the economic, environmental, and social sustainability of cropping systems as well as food security. He addresses the doubt some are having about the reliability of biofuels and focuses a lot on biogeochemistry.
Embed Options
Close ×
Biofuels Sustainability: A Biogeochemical Challenge - Ep.... image
Biofuels Sustainability: A Biogeochemical Challenge - Ep....
Learn about the sustainability and benefits of biofuels from Phil Robertson.
Please copy this text to your clipboard.
Problems Playing Video ?
University Place is made possible by the Corporation for Public Broadcasting.


Watch videos from your favorite PBS KIDS shows with the PBS KIDS Video app for your tablet or phone.

Downton Abbey Collection

Bring home the complete collection: DVDs, Blu-rays, books, gifts and more. Visit ShopPBS.


WPT helps all of us explore new worlds and ideas. Give Now