This sentence…

“One of the panel’s most striking new conclusions is that rising temperatures are already depressing crop yields, including those of corn and wheat. In the coming decades, farmers may not be able to grow enough food to meet the demands of the world’s growing population, it warns.”

…is in this LA Times story by Tony Barboza about the latest IPCC report which has so much gloom and doom in it, one of the lead authors, Dr. Richard Tol, asked his name to be taken off of it for that very reason.