Climate Debate's "Included Middle" and excluded edges

When I claim you can't simultaneously be an environmentalist and a supporter of Mars colonies, I really mean you shouldn't be both.

Because obviously many of us - perhaps most of us - feel we can have our environmental cake and eat a little Mars bar as well.

We like to be both Modern and Post-Modern : we just feel richer by settling for both, without letting our sense of consistency keep us up nights.