Policy decisions on climate change are being deliberated every day by those without full knowledge of the science, and often with intentional… — James Hansen Copy Share Image
I think we have a very brief window of opportunity to deal with climate change... no longer than a decade, at the… — James Hansen Copy Share Image
Imagine a giant asteroid on a direct collision course with Earth. That is the equivalent of what we face now [with climate… — James Hansen Copy Share Image
The forcings that drive long-term climate change are not known with an accuracy sufficient to define future climate change. — James Hansen Copy Share Image
...the global surface albedo [surface whiteness] and greenhouse gas changes account for practically the entire global climate change. — James Hansen Copy Share Image
The climate system is being pushed hard enough that change will become obvious to the man in the street in the next… — James Hansen Copy Share Image
If humanity wishes to preserve a planet similar to that on which civilisation developed and to which life on Earth is adapted,… — James Hansen Copy Share Image
After spending three or four years interacting with the Bush administration, I realized they were not taking any actions to deal with… — James Hansen Copy Share Image
Our analysis shows that, for the extreme hot weather of the recent past, there is virtually no explanation other than climate change.… — James Hansen Copy Share Image
Being at NASA and having the access to both computing capability and satellite observation capability is kind of the ideal research situation… — James Hansen Copy Share Image
The climate is nearing tipping points. Changes are beginning to appear and there is a potential for explosive changes, effects that would… — James Hansen Copy Share Image
We cannot afford to put off change any longer. We have to get on a new path within this new administration. We… — James Hansen Copy Share Image
I have been described as the grandfather of climate change. In fact, I am just a grandfather and I do not want… — James Hansen Copy Share Image
Climate change is analogous to Lincoln and slavery or Churchill and Nazism: it's not the kind of thing where you can compromise. — James Hansen Copy Share Image
What is frustrating people, me included, is that democratic action affects elections but what we get then from political leaders is greenwash. — James Hansen Copy Share Image
The five-year mean global temperature has been flat for the last decade — James Hansen Copy Share Image
What makes tar sands particularly odious is that the energy you get out in the end, per unit carbon dioxide, is poor. It's equivalent… — James Hansen Copy Share Image
We are on the precipice of climate system tipping points beyond which there is no redemption. — James Hansen Copy Share Image
Jail threats did not dissuade Martin Luther King - and intergenerational justice is a moral issue of comparable magnitude to civil rights. — James Hansen Copy Share Image
The United States did not sign Kyoto, yet its emissions are not that different from the countries that did sign it. — James Hansen Copy Share Image
The five-year mean global temperature has been flat for the last decade, which we interpret as a combination of natural variability and a slow… — James Hansen Copy Share Image
Rising carbon price is essential to 'decarbonize' the economy - to remove the nation towards the era beyond fossil fuels. — James Hansen Copy Share Image
Policy decisions on climate change are being deliberated every day by those without full knowledge of the science, and often with intentional misinformation spawned… — James Hansen Copy Share Image
Imagine a giant asteroid on a direct collision course with Earth. That is the equivalent of what we face now [with climate change], yet… — James Hansen Copy Share Image
The most difficult task, phase-out over the next 20-25 years of coal use that does not capture COâ‚‚, is Herculean, yet feasible when compared… — James Hansen Copy Share Image
![“Imagine a giant asteroid on a direct collision course with Earth. That is the equivalent of what we face now [with climate change], yet we dither.” quote by James Hansen](https://sms4smile.com/quotes/img-quotes/ca3/james-hansen-7143_asteroids_imagine-a-giant-asteroid-on-a-direct-col_643017.jpg)
![“...the global surface albedo [surface whiteness] and greenhouse gas changes account for practically the entire global climate change.” quote by James Hansen](https://sms4smile.com/quotes/img-quotes/34b/james-hansen-7143_accounts_the-global-surface-albedo-surface-whiten_1246456.jpg)
![“If humanity wishes to preserve a planet similar to that on which civilisation developed and to which life on Earth is adapted, paleoclimate evidence and ongoing climate change suggest that CO₂ will need to be reduced from its current 385 ppm [parts per million] to at most 350 ppm... If the present…” quote by James Hansen](https://sms4smile.com/quotes/img-quotes/4b3/james-hansen-7143_adapted_if-humanity-wishes-to-preserve-a-planet_1183760.jpg)
![“Our analysis shows that, for the extreme hot weather of the recent past, there is virtually no explanation other than climate change. The deadly European heat wave of 2003, the fiery Russian heat wave of 2010 and catastrophic droughts in Texas and Oklahoma last year [2011] can each be attributed…” quote by James Hansen](https://sms4smile.com/quotes/img-quotes/9f5/james-hansen-7143_analysis_our-analysis-shows-that-for-the-extreme_1947281.jpg)
