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
The greatest danger hanging over our children and grandchildren is initiation of changes that will be irreversible on any time scale that… — 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
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
![“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)
![“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)
