Pushing beyond earth's limits
World grain production is a basic indicator of overall food security at the global level. Since 1984, world grain production has expanded more slowly than the world’s population. By the early years of the 21st century, consumption has outstripped production. Could these trends herald a new "politics of scarcity"?In this article, the author sets out the evidence for his assertion that the world faces a future food security crisis.First, based on current trends, demand for grain will increase significantly over the coming years.