I am old enough to know that a red carpet is just a rug.

We need to remake the Democratic party. We need to remake America.

A lot of people go straight from denial to despair without pausing in the middle and doing something about it.

We the human species, are confronting a planetary emergency-a threat to the survival of our civilization that is gathering ominous and destructive potential...the earth has a fever. And the fever is rising...Indeed, without realizing it, we have begun to wage war on earth itself.

Today I challenge our nation to commit to producing 100 percent of our electricity from renewable energy and truly clean carbon-free sources within 10 years.

Our new technologies, combined with our numbers, have made us, collectively, a force of nature

The center of the earth is about a million degrees.