"The food-related emissions and, conversely, the impacts of climate change on agriculture and the food system, will profoundly alter the way we grow and produce food. This will affect different parts of the world in radically different ways, but all regions will have to change their current approach to what they grow and eat," said Sonja Vermeulen, the head of research at CCAFS and the lead author of Climate Change and Food Security.
Determining what crops grow in which places
Yields of the three biggest crops in terms of calories providedmaize, rice and wheatwill decrease in many developing countries as temperatures rise and rainfall becomes more unpredictable, according to Recalibrating Food Production in the Developing World. The analysis, which studies the potential effects of climate change on 22 of the world's most important commodities, highlights the impending transformations of the agricultural landscape.
By 2050, climate change could cause irrigated wheat yields in developing countries to fall by 13 percent. Irrigated rice is these same countries could tumble 15 percent. In Africa, many farmers of maize, which is not that well suited to increased temperatures, could lose 10 to 20 percent of their yields.
Additional calorie and protein sources will also suffer in many places. The cost of feeding livestock with maize and grain will become more expensive. And the availability of fishwhich are particularly susceptible to higher temperatures and higher ocean salinitywi
|Contact: Dan Klotz