There's certainly something good that there isn't an "easy" solution. If it were trivial to reduce CO2 from 400 ppm to 350 ppm, it would be easy to get to 0 par

There's certainly something good that there isn't an "easy" solution. If it were trivial to reduce CO2 from 400 ppm to 350 ppm, it would be easy to get to 0 parts per million, which would extinguish all plant life on the planet and also kill us.