"I've tried to be a straight scientist doing the science and reporting it as best I can."

"Consider the perverse effect cap and trade has on altruistic actions. Say you decide to buy a small, high-efficiency car. That reduces your emissions, but not your country's. Instead it allows somebody else to buy a bigger S.U.V. - because the total emissions are set by the cap."

"What has become clear from the science is that we cannot burn all of the fossil fuels without creating a very different planet."

"Money has too big an influence on our politics in Washington and somehow we need to do something about that."

"Never underestimate the power of the light of knowledge dispels the darkness of ignorance."

"Willingness to change is a strength, even if it means plunging part of the company into total confusion for a while."

"Britain's great strength is its innovative, design and engineering natural ability and we're not using it."

"At the end of the day, you're responsible for yourself and your actions and that's all you can control. So rather than be frustrated with what you can't control, try to fix the things you can."