It seems an easy choice - sacrifice the tree for a human life - until one learns that three trees must be destroyed for each patient treated. Suddenly we must confront some tough questions. How important are the medical needs of future generations?

I'm still trying to figure out exactly what President Trump represents in American politics. But, if nothing else, he represents a way for tens of millions of people who were desperate for change to just turn the table over and say, we want to start over again. But it is a challenge for our democracy. It definitely is. But, again, the remedy has to be devoting enough attention to restoring the way we make collective decisions in this country.

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

The truth is that climate change is presenting the greatest challenge humanity has ever faced.

When it comes to climate, we can all make a big difference.

In the United States of America, unfortunately we still live in a bubble of unreality. And the Category 5 denial is an enormous obstacle to any discussion of solutions. Nobody is interested in solutions if they don’t think there’s a problem. Given that starting point, I believe it is appropriate to have an over-representation of factual presentations on how dangerous it is, as a predicate for opening up the audience to listen to what the solutions are, and how hopeful it is that we are going to solve this crisis.

There are people who are genuinely upset in the Tea Party. I understand that. But that movement was funded with seed money from right-wing billionaires, the Koch brothers, and promoted on Fox News, and turned into a stocking horse for the right-wing agenda that a lot of people have been trying to push on the country for a long time.