When we think about global warming at all, the arguments tend to be ideological, theological and economic.

If one wanted to stigmaitise, that's how one would do it - lots and lots of people saying "we're severing our ties".

In the scientific community, the debate is over, for all intents and purposes, about whether or not the planet is heating and who is causing it. In fact, it's more or less been over since 1995.

We couldn't outspend the fossil fuel industry - they have more money than God.

Until it's understood to involve justice for those in poverty, a future for generations yet unborn, and a commitment to the rest of creation, it's unlikely we'll be able to overcome the status quo.

Renewable energy is far more labor-intensive than fossil fuel production.

Scientists had said, "If you keep burning coal and gas and oil, you will melt the Arctic." And then the Arctic melted just as they had predicted. Did Shell Oil look at the melt and say, "Huh, maybe we should go into the solar-panel business instead?" No, Shell Oil looked at that and said, "Oh, well, now that it's melted it will be easier to drill for more oil up there." That's enough to make you doubt about the big brain being a good adaptation.