I think that the world is in the middle of a huge transition that we have to make to renewable energy. We have to transition away from fossil fuels very, very quickly.

Fossil fuels are - they're inherently centralized. And you need a lot of infrastructure to get them out, and you need a lot of infrastructure to transport it, as Obama was explaining in front of all that pipe, right? Whereas renewable energy is everywhere.

It's going to cost trillions of dollars to rework the energy sources all over the world. Were going to have to move away from fossil fuels.

Some solutions are relatively simple and would provide economic benefits: implementing measures to conserve energy, putting a price on carbon through taxes and cap-and-trade and shifting from fossil fuels to clean and renewable energy sources.

I think the cost of energy will come down when we make this transition to renewable energy.

Wind and other clean, renewable energy will help end our reliance on fossil fuels and combat the severe threat that climate change poses to humans and wildlife alike.