The most blatant examples are increased power and frequency in hurricanes and the increased depth and frequency of heat waves.

It now appears that the fracturing of that ice is happening much more quickly than people previously thought, apparently at a slow melt.

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.

I can't tell how moving it is to open my email and see a picture of 1,500 Buddhist monks and nuns in the Himalayan kingdom of Ladakh forming a human 350 against the backdrop of the melting glaciers. This is not their fault, and yet they're stepping up to be part of the solution.

I think communities of faith are extremely important in this question. I think that all faith communities share a common and unusual distinction in our time of being the only institutions left that can posit some goal other than accumulation for human existence. I think that's enormously important because it is that drive for consumption more than anything else that fuels the environmental devastation around us.

If we all used clotheslines, we could save 30 million tons of coal a year, or shut down 15 nuclear power plants. And you don't have to wait to start. Yours could be up by this afternoon. To be specific, buy 50 feet of clothesline and a $3 bag of clothespins and become a solar energy pioneer.

In the last two years 24 countries have set new all-time temperature records. We've seen flooding on an epic scale in every continent .