In the age of the internet, with all of its problems, over time, the very fact that individuals can join the conversation creates the opportunity for the emergence of - for the re-emergence of a genuine conversation of democracy.

We face a climate crisis now that is the most serious challenge our civilization has ever confronted. And the greatest country in the world [America] has to remain a part of this unprecedented global agreement to deal with it.

Science is warning us that if we do not quickly reduce the global warming pollution that is trapping so much of the heat our planet normally radiates back out of the atmosphere, we are in danger of creating a permanent 'carbon summer'.

A zebra does not change its spots.

The struggle to save the global environment is in one way much more difficult than the struggle to vanquish Hitler, for this time the war is with ourselves. We are the enemy, just as we have only ourselves as allies.

We can't negotiate the facts. We can't negotiate the truth about the situation. And for those who are too fearful to finish, it can be done and must be done. Make sure we succeed, . . . It is wrong for this generation to destroy the habitability of our planet and ruin the prospects of every future generation.

Throughout most of my life, I raised tobacco. I want you to know that my own hands, all of my life, I put in the plant beds and transferred it! I hoed it! I've dug in it! I've sprayed it! I've chopped it! I've shredded it, spiked it, put it in the barn and stripped it and sold it!