That depends. Is it too unnatural to go and plant millions of trees? What about culling populations of deer (as we do here in Scotland) to prevent the erosion o

That depends. Is it too unnatural to go and plant millions of trees? What about culling populations of deer (as we do here in Scotland) to prevent the erosion of forestry (deer love to graze on saplings)? What about the introduction of new species to restore ecological balance? These things work when we get them right. I'm proposing that we get better at it, instead of giving up.