The task of saving the earth's environment must and will become the central organizing principle of the post-Cold War world.

I have a sense of mission on this climate crisis, and I'm trying to pour all the energy I have into it. And I hope that I, along with others, can catalyze the emergence of real solutions to the climate crisis. I think we're making a lot of progress. I think we're going to win this, but it matters how quickly we win it. So I'm focused on that.

All of us can make changes, but the changes that are most needed are not light bulbs and windows but laws and policies and treaties. So, yes, we are in a phase of this (climate protection) struggle where civic and political action is at the top of the list.

We can build a collective civic space large enough for all our separate identities, that we can be E Pluribus Unum - Out of One, Many.

We ought to approach this challenge [of global warming] with a sense of profound joy and gratitude: that we are the generation about which, a thousand years from now, philharmonic orchestras and poets and singers will celebrate by saying, they were the ones that found it within themselves to solve this crisis and lay the basis for a bright and optimistic human future.

Americans have the right to have their medical decisions made by them and their doctors, and not by those bureaucrats sitting behind a computer screen hundreds of miles away.

Israel has its own right as a nation to defend its national security.