James Hansen

Talking nice about sun and wind and green jobs is just greenwash.

— James Hansen

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

— James Hansen

The five-year mean global temperature has been flat for the last decade

— James Hansen

What makes tar sands particularly odious is that the energy you get out in the end, per unit carbon dioxide, is poor.…

— James Hansen

We are on the precipice of climate system tipping points beyond which there is no redemption.

— James Hansen

Jail threats did not dissuade Martin Luther King - and intergenerational justice is a moral issue of comparable magnitude to civil rights.

— James Hansen

The United States did not sign Kyoto, yet its emissions are not that different from the countries that did sign it.

— James Hansen

The five-year mean global temperature has been flat for the last decade, which we interpret as a combination of natural variability and…

— James Hansen

Rising carbon price is essential to 'decarbonize' the economy - to remove the nation towards the era beyond fossil fuels.

— James Hansen

Policy decisions on climate change are being deliberated every day by those without full knowledge of the science, and often with intentional…

— James Hansen

Imagine a giant asteroid on a direct collision course with Earth. That is the equivalent of what we face now [with climate…

— James Hansen

The most difficult task, phase-out over the next 20-25 years of coal use that does not capture COâ‚‚, is Herculean, yet feasible…

— James Hansen

As species are exterminated by shifting climate zones, ecosystems can collapse, destroying more species.

— James Hansen

I think we have a very brief window of opportunity to deal with climate change... no longer than a decade, at the…

— James Hansen

The climate system is being pushed hard enough that change will become obvious to the man in the street in the next…

— James Hansen

Scientists will say we can't blame global warming for any single event. In a sense that's right, but the fact that the…

— James Hansen

It's as certain that as long as fossil fuels are the cheapest energy, we will just keep burning them.

— James Hansen

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

— James Hansen

We have known since the 1800s that carbon dioxide traps heat in the atmosphere. The right amount keeps the climate conducive to…

— James Hansen

I was lucky to grow up at a time when it was not difficult for the child of a tenant farmer to…

— James Hansen

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

— James Hansen

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

— James Hansen

The last time the world was three degrees warmer than today-which is what we expect later this century-sea levels were 25m higher.…

— James Hansen

Recent warming coincides with rapid growth of human-made greenhouse gases. The observed rapid warming gives urgency to discussions about how to slow…

— James Hansen

Some Democrats deserve to be criticized.

— James Hansen