> Projections about or population leveling off would change when assumptions change, like the world being cleaner from planting all these trees. You have it ba

> Projections about or population leveling off would change when assumptions change, like the world being cleaner from planting all these trees. You have it backwards. People in clean, wealthy countries tend to have fewer kids than even the 2.1 required to maintain stable numbers. It's people in developing places, where the environment is often dirty and unhealthy, who have the most children. Planting trees will not lead to overpopulation.