Driverless cars are coming to your street - the only question is, 'When?'

And when these advances are made, hydrogen can fill critical energy needs beyond transportation. Hydrogen can also be used to heat and generate electricity for our homes. The future possibilities of this energy source are enormous.

On the battlefield, the military pledges to leave no soldier behind. As a nation, let it be our pledge that when they return home, we leave no veteran behind.

TPP replicates similar language from past trade agreements that has allowed foreign corporations the right to challenge U.S. federal, state, and local laws outside of American courts. These tribunals will not meet our high standard of transparency and due process, and they will rely on weak impartiality rules for selecting judges.

The U.S. has historically been the world's largest contributor to climate change.

In terms of sustainability and what we eat and what its footprint is on the environment and the consequences of eating one thing versus another, obviously it makes a lot of sense to be eating insects. They're incredibly plentiful. They've got a very short turnover rate. You could be eating termites.

You frighten a lot of scientists. If they say that climate is not changing, they lose their research grants. And some people cannot afford that; they become silent, or a few of us speak up, because we think that it's for the honesty of science, that we have to do it.

Solving climate change is a complex topic, but in a single crude brush-stroke, here is the solution: the price of carbon dioxide must be such that people stop burning coal without capture.