He is right, not only do they emit more carbon but they have also been blamed for the rise in world food prices in the last few years. (totalpolitics.com)
But I realize that I am writing this at the same time as world food prices are about to start rising sky high. (dotearth.blogs.nytimes.com)
With world food prices projected to continue rising, so too will the number of hungry people, leaving millions of families trying to survive on one meal per day. (earthpolicy.org)