We need a complete conversion of the agricultural systems.
It will not be fast, easy, or cheap.
The issue is too important to let corporations control make the decisions.
This is only the beginning hope to spend the time to expand
Sustainable production less input co2 sequestration no gmo's
Start with
Allan Savory Ted Talk
http://www.ted.com/talks/allan_savory_how_to_green_the_world_s_deserts_and_reverse_climate_change
Then
Gabe Brown
Soil health
This talk is directed to farmers that have a anti-environmental bend so less emphasis on environmental issues when speaking to a more enlightened group his talk is less country twang and more science based
http://www.bing.com/videos/search?q=gabe+brown+soil+health&FORM=HDRSC3#view=detail&mid=4145088DB3EF49DFB8CF4145088DB3EF49DFB8CF
Mike Hands this is only a little info on this subject see the full documentary
http://www.bing.com/videos/search?q=mike%20hands%20inga%20frontline&qs=n&form=QBVR&pq=mike%20hands%20inga%20frontline&sc=0-0&sp=-1&sk=#view=detail&mid=46F489526F819D99DF6E46F489526F819D99DF6E