Food shortages for the poor - greeeeat

In the last month I've read of both wheat shortages this year, and rice shortages. The latter is connected to global warming, I don't know about the former. But they're predicting large-scale famines for developing areas, and scientists are trying to find alternate crops. (Eg. Apparently potatoes are now being grown in new places, because of the warming.)

From BBC:

"We're talking about a major challenge here," said Louis Verchot of the World Agroforestry Centre (Icraf) in Kenya, a member institute of CGIAR.

"We're talking about challenges that have to be dealt with at every level, from ideas about social justice to the technology of food production," he told the BBC News website.

"We're talking about large scale human migration and the return to large-scale famines in developing countries, something which we decided 40 or 50 years ago was unacceptable and did something about."