The new Green Revolution: How twenty-first-century science can feed the world

The combined effects of climate change, energy scarcity, and water paucity require that we radically rethink our agricultural systems. Countries can and must reorient their agricultural systems toward modes of production that are not only highly productive, but also highly sustainable. Following the 2008 global food price crisis, many developing countries have adopted new food security policies and have made significant investments in their agricultural systems. Global hunger is also back on top of the international agenda. However, the question is not only how much is done, but also how it is done—and what kinds of food systems are now being rebuilt.