We've have to heed our Biblical obligation to be good stewards of the Earth after leaving the Garden of Eden.

The government also has to get the public rules right. That means putting a price on carbon, so the cleaner forms of energy become more competitive. As soon as that happens, a tidal wave of new capital, innovation and entrepreneurship will flood into the clean energy space - creating new jobs and opportunities for Americans of all walks of life. We did that for the internet, with public investments in the basic system through the Pentagon, followed by rules that encouraged innovation and competition. And that is why the internet took off in the United States first.

All the old rules - if you say some crazy stuff you get your show canceled or you get your campaign ended - don't apply in the world of social media. They don't apply in the world of reality TV.

Most green-collar jobs are middle-skill jobs. That means they require more education that a high-school diploma, but less than a four-year degree.

We tend to overlook the fact that a mature clean energy economy in fact will give an opportunity to ordinary people to earn more money as clean energy workers/entrepreneurs - and save more money, through conservation and energy efficiency.

I'm learning and changing all the time, and I expect to continue doing so my entire life.

Donald Trump's promised the moon. Now he has power. He's going to fail to deliver. He's not going to be able to bring a bunch of coal jobs back and a bunch of factory jobs back in this global economy. Period. Because you can't. It's not going to happen.