To me, the best projects are the ones where you have a pretty good idea of what the spine of it's gonna be, but then all sorts of things happen that you could've never predicted, and those are the magic moments of the films.

Of course no documentary is completely 'objective.' Every decision you make - who to interview, how to edit, where to hold the camera - imposes a point of view on the film.

When you are interviewing someone, never let your camera person turn off the camera. The second you turn off the camera, they'll say the magic thing that you'd been looking for the whole interview. People want to relax after the performance is done. Don't be afraid of awkward silence. That is your friend.

I'm looking for a charismatic character - somebody who you just want to look at and listen to and whom the camera likes. I'm also looking for a narrative arc: Something is going to happen, and there will be a question that will make you wonder what happens at the end.

I was a very sickly kid and suffered from chronic pneumonia, which is why we moved to the warm southern climate. I think being ill contributed to my development as a writer. I learned early on to entertain myself by reading.

If the U.S. fails to set the rules for global trade, then other countries with records of environmental and labor abuses, like China, will step in to fill the void.

I don't know if it's just my age or the climate or the high altitude or some of those old-cowboy values rubbing off on me, but I've grown slightly mellower living in Wyoming. I think if you ride into the West on a high horse, you pretty soon end up in a pile of manure.

Climate neutrality means a situation where the world can naturally absorb the emissions that will continue to be produced in our societies.