"With a fourth generation of nuclear power, you can have a technology that will burn more than 99 percent of the energy in the fuel. It would mean that you don't need to mine uranium for the next thousand years."
"It has become appallingly obvious that our technology has exceeded our humanity."James Hansen on Albert Einstein
"The typewriting machine, when played with expression, is no more annoying than the piano when played by a sister or near relation."James Hansen on Oscar Wilde
"Any sufficiently advanced technology is indistinguishable from magic."James Hansen on Arthur C. Clarke
"The world is very different now. For man holds in his mortal hands the power to abolish all forms of human poverty, and all forms of human life."James Hansen on John F. Kennedy
"I am sorry to say that there is too much point to the wisecrack that life is extinct on other planets because their scientists were more advanced than ours."James Hansen on John F. Kennedy
"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."
"Money has too big an influence on our politics in Washington and somehow we need to do something about that."
"I've tried to be a straight scientist doing the science and reporting it as best I can."
"You have no time to do the science if you're talking to the media."
"What has become clear from the science is that we cannot burn all of the fossil fuels without creating a very different planet."