.... Keeps floods from happening, mountainsides from avalanching into rivers and like that. Planting Trees in the Great Plains (at least away from the rivers and streams) is also a good idea -- shelterbelts and all. One of The great soil conservation ideas that has proven out to actually Work as it's supposed to. Clearly they can't grow Everywhere, though. It's a ...

... Thing. Keeps floods from happening, mountainsides from avalanching into rivers and like that. Planting Trees in the Great Plains (at least away from the rivers and streams) is also a good idea -- shelterbelts and all. One of The great soil conservation ideas that has proven out to actually Work as it's supposed to. Clearly they can't grow Everywhere, though. It's a mistake to...