To be sure, governments will remain critical to any comprehensive effort to save our planet.

Making movies is my profession. I like doing it a lot.

I think politics is really important to our lives. At its best and highest form, it can make the biggest difference in the world and at its worst, it is the worst skullduggery on planet Earth.

If you go back and look at President Reagan's speeches, they bring you to tears almost.

With climate change, we are living on borrowed time. If we do not address these issues today, it is going to be much more expensive later on, and that is why we need to take action now.

There can be no more burying our heads in the sand by being afraid to even mention the words 'climate change' aloud.

The climate, the economic situation, rising birth rates; none of these things give me a lot of hope or reason to be optimistic.

I think it makes people in the Pentagon kind of nervous to know that chemical agents and environmental factors could cause so much damage in terms of what may happen in the future.