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.

We're going in the wrong direction and I think the only way to counter that is to bring the story home in really concrete ways to people - in ways that kids can understand and non-scientists can understand.

Benjamin Netanyahu, understands that the standing ovation he got in Congress this year was not for his politics. That ovation was bought and paid for by the Israel lobby.

Hope and optimism aren't just attitudes, they are life strategies.

If you are self-motivated, wow, this world is tailored for you. The boundaries are all gone. But if you're not self-motivated, this world will be a challenge because the walls, ceilings and floors that protected people are also disappearing. That is what I mean when I say "it is a 401(k) world." Government will do less for you. Companies will do less for you. Unions can do less for you. There will be fewer limits, but also fewer guarantees. Your specific contribution will define your specific benefits much more. Just showing up will not cut it.

Everyone needs to get together and say: "Our objective is to preserve and enhance the game and the planet on which it's played. To make golf a leader in greening the world."

A golf course should aspire to generate as much energy as it consumes - golf should be leading the way toward energy net zero.