I'm naturally an optimist, but my basis for hope is rooted in my understanding of human nature.

The global environment crisis is, as we say in Tennessee, real as rain, and I cannot stand the thought of leaving my children with a degraded earth and a diminished future.

Take it from me: Elections matter.

(George Bush) betrayed this country! He played on our fears. He took America on an ill-conceived foreign adventure dangerous to our troops, an adventure preordained and planned before 9/11 ever took place!

I think that asserting that former President Obama wasn't born in the United States was just the height of irresponsibility, of course. And Donald Trump corrected that one. There are others that have yet to be corrected.

We're putting 70 million tonnes of pollution into the atmosphere every day, trapping an enormous amount of extra heat from the sun inside the earth's atmosphere. It's threatening to push the planet past a tipping point beyond which climate change would be difficult to stop

I have faith in the United States and our ability to make good decisions based on the facts.