Combating climate change requires government policy, and most conservatives hate the idea of more government regulation. Because they hate the prescription, they deny the diagnosis.

In the hyperconnected world, there is only “good” “better” and “best.

If you don't have an ethic of conservation, you basically have a license to drive a Hummer through the Amazon.

Once people get a taste for whatever you want to call it - economic independence, a better lifestyle, and a better life for their children - they grab on to that and don't want to give it up.

The great thing about cheap natural gas, again it's cheap, and it provides a cleaner alternative to coal. But it's still a fossil fuel, and because it's still a fossil fuel, it still emits carbon.

Do you know what my favorite renewable fuel is? An ecosystem for innovation.

Hillary Clinton has decided to line up with John McCain in pushing to suspend the federal excise tax on gasoline, 18.4 cents a gallon, for this summer's travel season. This is not an energy policy. This is money laundering: we borrow money from China and ship it to Saudi Arabia and take a little cut for ourselves as it goes through our gas tanks. What a way to build our country.