We are on a trajectory to increase the average temperature of the planet by as much, if not more, than from the last ice age to now, when so much of the oceans were frozen than the sea level was 120m lower than it is today and northern Europe and America were covered with several kilometers of ice. And so within one century. When we reach that point forests won't even be able to grow. That's the scale of problem we should be facing. The ideas you propose are just a distraction.