In this case, I'll ignore the usual arguments about "climate change", by saying it is part of the "resources" in the rest of this post and make no comment on how small or large a part it is.
Fact is, we live on a planet of limited useful resources. Our population is increasing, and we can't recycle enough. There are three ways out -
1) Technological expansion, which has helped in the past, but at this point, the minimum requirement is extensive harvesting of resources from deep space, along with planetary scale engineering. That's not going to happen fast enough
2) Population reducing it's impact. Humans are selfish and they'll hang onto their current lifestyles. You can tinker around the edges, recycle, reusable tech etc, but the developed world is unlike to abandon enough to bring it's consumption down to a fair level, and the rest of the world is scrambling to drag themselves up above the fair level. And, of course - with an expanding population, the fair level is effectively dropping. That's just not going to happen on a useful scale.
3) Population reduction. This is the only realistic option left. Your choices are culling or reduction of birth rate. So, which is it? Don't take too long to decide, because our ecosystem tends to favour random culling, and it's going to do it soon...
Nice analysis of the piece though, made me think carefully!