Remember, the difference between the world frozen over, in an ice ball, and the warming period we're in now is just 6 degrees centigrade. A change of just 1 degree can have a huge effect.

Some would ask which country am I from? We are supposed to tell the truth, [so] we tell them India. Some thought it was Indiana, not India! Some did not know where India is. I said it is the country next to Pakistan.

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.

What we do know is that the planet is going from 7 billion people today to 9 billion. More people want to live like us, drive American- size cars, live in an American-size home, and eat American-size Big Macs. What does that mean? It means that energy demand is going to be going up.

We have to fight the terrorists as if there were no rules and preserve our open society as if there were no terrorists.

Optimists are usually wrong. But all the great change in history, positive change, was done by optimists.

If we don't have a more serious energy policy, the difference between a good day and bad day for America from here on will hinge on how the 86-year-old king of Saudi Arabia manages...change.