We must also promote global access to the Internet. We need to bridge the digital divide not just within our country. But among countries. Only by giving people around the world access to this technology can they tap into the potential. Of the information age.

Remember America, I gave you the Internet and I can take it away.

The moral imperative to make big changes is inescapable...that what we take for granted may not be here for our children

Humanity is sitting on a time bomb. If the vast majority of the world's scientists are right, we have just ten years to avert a major catastrophe that could send our entire planet's climate system into a tail-spin of epic destruction involving extreme weather, floods, droughts, epidemics and killer heat waves beyond anything we have ever experienced - a catastrophe of our own making.

Believe in the power of your own voice.

Any of us who work on the task of solving the climate crisis have at times an internal struggle between hope and despair. But that's one of the things that connects this climate movement to the previous great moral revolutions, like the civil rights movement and more recently the gay rights movement. So those who feel despair should be of good cheer, as the Bible says. Have faith, have hope. We are going to win this.

I don't have the illusion that there's any position or role in the world with as much potential for bringing about change as that of president of the United States.