Free people are, by definition, free to direct their economic efforts elsewhere if a drought or a plague of locusts attacks the agriculture.
Ding-ding-ding - We have a winner!
People don't starve. They ARE STARVED.
God is stubbornly generous; this world is full of food.
Does anybody actually believe that Cambodia suffered a poor climate from 1975-178? That Ukraine failed to produce food in the early 1930's? That Ireland did not EXPORT food in the 1840's? Even the canard that the early Jamestown colonists "starved" - the Powhatans were very wisely attempting to kill every last one of them..