When I first proposed a zero emission target at a Congressional briefing, in 2005 the audience laughed thinking it was ridiculous. Now it is national policy for most countries in the world. (kudos to Elizabeth Kolbert) www.newyorker.com/magazine/200...

This was before your Stabilization paper (Matthews & Caldeira 2008). What was your thinking at the time?

Still my favorite Caldeira quote.

But still we walk on scenario RCP 8.5, and we know exactly, that this will wipe economy, civilisations and human rights from the planet with a very high probability.