Changes to weather patterns that move crop production areas around - we'll adapt to that. It's an engineering problem, and it has engineering solutions.

In conventional oil and natural gas production, you always produce a lot of formation water, and it's crummy water. It's real salty. It's got heavy metals in it. It's got bad stuff in it.

There are still hundreds of millions, billions of people living in abject poverty around the world. They need electricity. They need electricity they can count on, that they can afford. They need fuel to cook their food on that's not animal dung.

The Common Core State Standards are based on the best international research. They are built on the standards used by the most effective education systems around the world, including Singapore, Finland, Canada and the U.K.

Nothing is easier than yesterday's solutions.

All things come down to your personal relationships.