Home from Terra Madre; so much to say. I will post again with Madre thoughts.
For now: Thee are some of the best documents I ever read on climate change, food and farming.
Concise, articulate, clear and directed. Free download:

http://www.arsia.toscana.it/petizione/clima.aspx
MANIFESTO ON CLIMATE CHANGE AND THE FUTURE OF FOOD SECURITY
MANIFESTO ON THE FUTURE OF SEED
MANIFESTO ON THE FUTURE OF FOOD