A new study, still tentative, suggests that climate change will have much worse effects on global food production and supply than experts have previously estimated.
"If there is a risk that global warming and related changes could hit much sooner and much harder than scientists are expecting, agriculture could be the crucial realm where that occurs. In fact, we have already entered an era of sharply higher global food prices, with climate change as one of the likely causal factors.
A new paper from researchers associated with Tufts University puts the overall risk in perspective. It is billed as a working paper, meaning it has not gone through formal scientific review, but it strikes me as worth highlighting nevertheless. ...
The authors, Frank Ackerman and Elizabeth A. Stanton, point out that in the 1990s, research suggested that climate change would be fairly benign for agriculture. The first few degrees of warming would help agriculture expand in chilly regions, the thinking went, and the rising level of atmospheric carbon dioxide would act as plant fertilizer, increasing crop yields. More recent science has cast sharp doubt on some of those conclusions."