I don’t think it can sustain the current population levels, at our North American standard of living. If we could distribute resources evenly, sure, we could keep everyone alive, but energy consumption, plastic production, all that adds up to an ecological footprint of resource use that isn’t sustainable.

World wildlife levels have gone down dramatically. We’re expanding human life at the expense of all other life. The other life on earth isn’t superfluous: it’s an ecosystem that keeps us alive, recycles our waste, provides our medicines and cultural wealth of all sorts.

We can’t keep our wealthy lifestyle and at the same time tell the poor people of the world that they have to stay poor so that we can remain wealthy.