date:Nov 02, 2012
Food production accounts for almost a third of global greenhouse gas emissions, more than twice the amount the United Nations has estimated comes from farming, according to studies published Wednesday, while climate change will require a complete recalibration of where crops are grown and livestock raised.
Emissions across the entire food system -- including manufacturing fertilizer, as well as transporting and refrigerating food -- need to be reduced as they total somewhere between 19% and 29%