That's right-the striking thing about greenhouse gases is the diversity of sources that emit them. A herd of cattle belching can be worse than highway full of hummers.

At the end of the day, no amount of investing, no amount of clean electrons, no amount of energy efficiency will save the natural world if we are not paying attention to it - if we are not paying attention to all the things that nature give us for free: clean air, clean water, breathtaking vistas, mountains for skiing, rivers for fishing, oceans for sailing, sunsets for poets, and landscapes for painters. What good is it to have wind-powered lights to brighten the night if you can't see anything green during the day? Just because we can't sell shares in nature doesn't mean it has no value.

I'm a radical pro-immigration advocate. I'm not saying we just look at the Muslim world or we just look at China, we just look at India as a source of our talent. But, one thing we know... first or second generation or new immigrants or children of immigrants have started about 40% of the Fortune 500 companies. For me it's always been a really very important issue that I want America to be open to the most energetic and talented people from around the world.

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

We are entering a hyperconnected world where every boss now has more access, cheap access to cheap labor, cheap genius, cheap robot, cheap software, and then this world averages over. There is only one answer to that, and that is to get everyone as close as possible to some form of post-secondary education, it could be vocational, it can be liberal arts, it can be science and technology.

Saudi hijackers first came into contact with al-Qaeda and went through Terrorism 101 when they signed up for the jihad in Afghanistan.

Water is our next great environmental challenge. It is the new oil. How are we going to preserve this sport unless we are designing and maintaining golf courses that are energy net zero, carbon net zero and water net zero? Or ideally, energy positive, carbon positive and water positive, where they are taking out more than they are using.