23 Jan 2017 Single most important assessment FAO-IPCC
EXPERT MEETING ON CLIMATE CHANGE, LAND USE AND FOOD SECURITY
Projected productivity changes and extreme events
1.1.1 Crops
In terms of global temperature and the yield response curves for crops such as wheat and maize,.. is that a 1 or 2 ºC warming to increase yields in temperate
regions is no longer expected,