I couldn't get past the paywall, but it seems like a broad dismissal of "them damn hippies". I'm going to guess that they ignore the externalized cost of over-

I couldn't get past the paywall, but it seems like a broad dismissal of "them damn hippies". I'm going to guess that they ignore the externalized cost of over-ferritization that goes downstream and destroys those habitats. Also ignoring the cost of supporting the petro-economy to deliver that cheap fertilizer. It also probably ignores the cost of loss of topsoil and other environmental factors as well...