For some in the movement, the more urgent problem is environmental: the food system consumes more fossil fuel energy than we can count on in the future (about a fifth of the total American use of such energy) and emits more greenhouse gas than we can afford to emit, particularly since agriculture is the one human system that should be able to substantially rely on photosynthesis: solar energy. It will be difficult if not impossible to address the issue of climate change without reforming the food system. This is a conclusion that has only recently been embraced by the environmental movement, which historically has disdained all agriculture as a lapse from wilderness and a source of pollution. 1 But in the last few years, several of the major environmental groups have come to appreciate that a diversified, sustainable agriculture—which can sequester large amounts of carbon in the soil—holds the potential not just to mitigate but actually to help solve environmental problems, including climate change. Today, environmental organizations like the Natural Resources Defense Council and the Environmental Working Group are taking up the cause of food system reform, lending their expertise and clout to the movement.