And nobody is talking about taking guns away from hunters or sportsmen or banning all guns. Nobody is talking about that.

We face a climate crisis now that is the most serious challenge our civilization has ever confronted. And the greatest country in the world [America] has to remain a part of this unprecedented global agreement to deal with it.

Most people in politics draw energy from backslapping and shaking hands and all that. I draw energy from discussing ideas.

What's at risk [in 100 years] if we do not take action, truly is the survival of civilization as we know it... Literally that is the case. We have seen global warming so far of just a little bit less than one degree Celsius and look at what's happened. Superstorm Sandy. Boulder Colorado. All these fires. Hurricane Irene one year before.

How could this Y2K be a problem in a country where we have Intel and Microsoft?

You're going to see new processes that utilize waste as the source of energy, so there's no petroleum consumed in the process - that makes the energy balance uniformly positive.

Even though it's important for all of us to change our light bulbs and the vehicles we drive, it's much more important to change our laws and policies. I drive a hybrid and we've changed our light bulbs and windows and installed solar panels and geothermal ground source heat pumps and most everything else. But putting the burden on individuals to solve this global crisis is ultimately not going to be the most effective way to solve it.