How can we transform the way crops are grown on hundreds of millions of farms, from the largest plantations to the tiniest smallholder plots? The Paris Climate Agreement went into force on November 4, less than a year after 190 governments signed the landmark, legally binding international treaty. Ten days later, world leaders and civil society groups gathered at the COP22 climate conference in Marrakech, Morocco, to tackle the next phase—implementation—beginning with the development of