RE: The United Nations Climate Change Conference - Global Culture of Peace and the International Politics of Population Growth.
Looking back on the history of international political development, points out that changes in world order from one to another rarely take place peacefully. International politics over the next two decades will have to meet two problems simultaneously: the peaceful change in the power of the political world order and the sustainable change towards a global climate policy.
David and Renate Jakupca,
International Center for Environmental Arts (ICEA)
ARK in Berea, Ohio
http://www.TheICEA.Org

I think you are right to point to these challenges (opints 1 and 2) to the sustainable food movement as signs of its growth and success. It will emerge in the coming year, I guess, how resilient the burgeoning sustainable foods movement is to these attempts at corporate co-option. My feeling on this is that the 'organic' label is more vulnerable than the 'local' in the sustainable foods markets.
'Organic' food products can be grown (or bought in bulk) by the conventional agribusiness-dominated food industry, distributed and sold through the conventional food system - see Wal-mart and Whole Foods (although lumping those two together is doubtless a little unfair).
On the other hand, I suspect that 'local' foods might prove more resilient to corporate co-option. It is very difficult to incorporate the buying, distribution and sale of foods local to the point of sale into conventional large-scale food systems, becuase these systems run on a national- and global-level infrastructure (as we well know). On a very simplistic level, I guess there might be two ways the 'local' could still be co-opted by these big corporate players - either twist the official (USDA-regulated in the future?) meaning of 'local' as has been done with 'organic', or start a reinvestment in some of the local food infrastructure whose demise you have written about previously.
More on this here.

One of the great things about communities in the United States organizing to pioneer food sovereignty is that the instinct is now catching on in the old world.

In 2007, over a thousand people grew food in the steel town of Middlesbrough, North East England. Then over 6000 people shared the final harvest at an epic town meal.

You'll find more on the initiative at: http://www.dott07.com/go/food/urban-farming

Also a new spatial plan for the town centered on food production here: http://tinyurl.com/2x7sww

There's been an argument here in the design press over the viability of urban agriculture.

The townspeople plan to repeat the process next year and they are further plans to launch a restaurant in the town supplied by the town's new 'urban farmers'.