I want to extend condolences to the families of those who died in the service of the United Nations.

I'm old enough to know that a red carpet's just a rug, and I've been able to enjoy the pageantry without letting it go to my head.

The answer is to end our reliance on carbon-based fuels... If we succeed, we create booming new industries, wealth, clean secure energy and maybe we prevent the greatest disaster so far in human history, saving millions of lives while improving billions more. If we fail, basically it's business as usual while things slowly get worse all around us.

I think George W. Bush has a warm, engaging personality. But, you know, the presidency is more than just a popularity contest.

Remember that the problem is bigger than the car you drive or the types of lightbulbs in city hall. We need a fundamental shift away from dirty fossil fuels that spew carbon pollution. To make that happen, we need to put pressure on our leaders to take the bold actions necessary to move us off dirty sources of energy.

The truth about the climate crisis is still inconvenient for the large carbon polluters and the politicians who are in their pockets.

I think the cost of energy will come down when we make this transition to renewable energy.