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

There is basically no one not on the payroll of Exxon Mobil or coal companies who any longer contend that this is not something to worry about.

TV makes it so easy to postpone living for another half hour.

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

All the science in the last few years, or almost all of it, really serves to show that the [climate] effects are larger and more rapid than we had thought even a decade ago.

To me the analogy [to climate change] is... doctors worry a lot about cholesterol. And if you go to the doctor, and the doctor says "oh, your life would be happier if you ate a different diet and exercised" people pay no attention.

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 .