This environmental consultant is growing in his awareness about the contradictions imposed by finite limits in our planet in relation to the economic system of capitalism. (Although, he doesn't name the system.) Also, in discussing his new awareness, he seems to be having difficulties keeping conventional thinking audiences with him.
The real problem is economic growth and consumption within a finite environment. It's only by changing the economic process [system?] itself, to adapt to the ecological limits acting upon the human system, that we can tackle the inter-related issues of resource depletion, climate change and ecological degradation.