Previous studies looking at impacts of climate change on the global food supply have only considered land - based food sources and these concluded that tropical areas will see a decline in land productivity. (all-creatures.org)
Even if some of these projects can dramatically boost land productivity, will local people gain from this? (treehugger.com)
After several decades of Lrapid rise in world grain yields, it is now becoming more difficult to raise land productivity fast enough to keep up with the demands of a growing, increasingly affluent, population. (treehugger.com)