James Hansen

“You can't turn on your television without seeing these advertisements about clean coal, clean tar sands and the claim that there's more jobs associated with fossil fuels than other industrie...”

“Scientists will say we can't blame global warming for any single event. In a sense that's right, but the fact that the frequency and intensity of these events is increasing you can blame on...”

“I have been described as the grandfather of climate change. In fact, I am just a grandfather and I do not want my grandchildren to say that grandpa understood what was happening but didn't m...”

“I tend to be naive and gullible, I guess, but I try to believe that governments believe what they say.”

“The five warmest years over the last century occurred in the last eight years.”

“What we are doing to the future of our children, and the other species on the planet, is a clear moral issue.”

“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...”

“What is frustrating people, me included, is that democratic action affects elections but what we get then from political leaders is greenwash.”

“The trains carrying coal to power plants are death trains. Coal-fired power plants are factories of death.”

“Global warming isn't a prediction. It is happening.”

“Being at NASA and having the access to both computing capability and satellite observation capability is kind of the ideal research situation to try to understand global climate change.”

“I was lucky to grow up at a time when it was not difficult for the child of a tenant farmer to make his way to the state university.”

“As a government employee, you can't testify against the government.”

“Tipping points are so dangerous because if you pass them, the climate is out of humanity's control: if an ice sheet disintegrates and starts to slide into the ocean there's nothing we can do...”