We could begin solving a number of currently problematic, large-scale issues with this one. Just repatriate the wrongs, finish re-introducing the wolves, cap the oil and gas wells and leave the natives the fuck alone. Or trade and work with them like normally socialized creatures.
Big herds of cattle will disappear, eco-diversity will return, oil will stay in the ground and greenhouse by-products of the most willfully evil colonization the planet has ever seen will start to diminish.
