Eric Holt-Gimenez and Miguel A. Altieri have just published this article in Agroecology and Sustainable Food Systems (January 2013)
In the face of recurrent global food crises, institutions of the corporate food regime propose a new Green Revolution coupled with a continuation of neoliberal economic policies. Because these are causes of the crises to begin with, this approach can worsen rather than end hunger. Building a countermovement depends in part on forging strong strategic alliances between agroecology and food sovereignty. Agroecologists face important choices between reformist and radical versions of agroecology. The former version attempts to co-opt agroecology into the Green Revolution; the latter centers agroecology within a politically transformative peasant movement for food sovereignty.
The full article can be found here