When you talk about President Trump, the cable networks turned over so many hours of prime time to him. Why? Because he was entertaining, but also because it drove ratings. And that is different from what the news media is supposed to focus on.

There are many who would much prefer that the word 'climate' never be mentioned and that the issue be eliminated from our national conversation.

I affirm my faith when I'm asked about it. But I always try to do so in a way that communicates absolute respect, not only for people who worship in a different way, but just as much respect for those who do not believe in God and who are atheists.

We have to use our reasoning capacity and set long-term goals based on our deepest values.

There are good people, who are in politics - in both parties - who hold this at arm's length, because if they acknowledge it and recognize it, then the moral imperative to make big changes is inescapable.

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.

The scientific evidence of how serious this climate crisis is becoming continues to amass week after week after week.