Instead of beating around the bush and choose easy targets such as fossil fuels and forests, do something about it.

Ah, so... you think more people should be working on this? I'm under the impression everyone in those poor countries with high birth rates is already working to move themselves or their country into a better economic position, and when they do, birth rates will fall and resource consumption will still go up, because rich people consume more resources, even when there are fewer of them. How does that solve the problem of the so-called "easy targets" like fossil fuels and forests?