What we should really be thinking about is what it would look like for a truly intelligent technological species to be interacting with their planet's atmosphere.

We have all this very clever technology and all these abilities to manipulate the world in all these ways, yet we are faced with the very real question of whether we can be sustainable on this planet - whether or not, in fact, we can endure.

In order to have a decent chance to be a communicating species, you would have to learn to think and plan and act over time scales of a century or a millennium.

David Grinspoon Quotes