People in low-lying countries like Bangladesh with almost 140 million people who are managing to feed themselves, whose carbon emissions can't really be calculated (they are a rounding error in the UN's attempts to do national comparisons), and yet, most of whose people are at risk from increased flooding due to rising sea levels.

Oil companies are radical because they're willing to alter the chemical composition of the atmosphere.

From some tiny portion of the wealth the west accumulated in a hundred years of filling the atmosphere with carbon.

You can have a healthy fossil-fuel balance sheet, or a relatively healthy planet

I'm probably the wrong person to ask. My partner in much of this work [climate movement], who really came up with the divestment campaign with me, Naomi Klein, I think has written powerfully about this.

A world where one tenth of the population gets to be extremely wealthy, and six tenths very poor, is not, in the long run, a stable place.

With each month that passes, a solar panel gets 2 or 3 percent cheaper. So while we're holding the fossil fuel industry in check, the engineers in the renewable energy world are undercutting them from the other side.