And, of course, heat also affects people. Agriculture is not typically a career one has the option to pursue from the comfort of one’s air-conditioned office (unless you’re not so much a farmer as a neo-feudal landowner… but that’s a different rant.) It’s once again a problem that’s going to get bigger — particularly in places like Texas and California, which have been so attractive for “efficient” agriculture in part because of their “efficient” (cheap, illegal) work force.