I agree strongly. As opposed to, say, eliminating habitat, farmland, or forest. Pollution is just a subset of depletion. It's one type of qualitative depletion.
Quantitative depletion occurs when the ozone layer thins or the aquifer water table drops.
Natural capital investment, or growing natural capital as some say, is then putting things back on the plus side rather than the minus side. The principal concern of this new movement was not with the preservation of wilderness or distant forests. Assuredly, Carson was rooting humanity in its invironment, since we like the songbirds were susceptible to DDT bioaccumulation and so forth. But Carson didn't pick a book title about us, she picked one about the songbirds. Moreover, she didn't pick one about the songbirds' poisoning, or pollution.