 and when it gets dry enough and they're not producing energy as much as they would, then they start to abort some of those leaves, to shed those leaves so that they're doing away with some of that water loss tissue just in an effort to survive. So that's why you're seeing lots of leaves like on tulip poplars, on sycamore trees that are going off color and dropping on the ground, especially the older ones. A lot of litter out there right now. And folks say, well, is my tree sick? Well, probably not, but it's just thirsty.