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The urgency derives from the nearness of climate tipping points.

James Hansen

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James Hansen
Age: 83
Born: 1941
Born: March 29
Astrophysicist
Environmentalist
Physicist
Professor
University Teacher
Denison
Iowa
James Hansen
James E. Hansen
James E Hansen
J. E. Hansen
J E Hansen
J. Hansen
J Hansen
Hansen
Hansen J
Hansen J.
Hansen J. E.
Hansen JE
Jim Hansen
Derives
Tipping
Urgency
Points
Climate
Nearness

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What we are doing to the future of our children, and the other species on the planet, is a clear moral issue.
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Recent warming coincides with rapid growth of human-made greenhouse gases. The observed rapid warming gives urgency to discussions about how to slow greenhouse gas emissions.
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If we fail to act, we will end up with a different planet.
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The evidence for human-made climate change is overwhelming.
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Some Democrats deserve to be criticized.
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'Goals' and 'caps' on carbon emissions are practically worthless, if coal emissions continue, because of the exceedingly long lifetime of carbon dioxide in the air.
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I tend to be naive and gullible, I guess, but I try to believe that governments believe what they say.
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As a government employee, you can't testify against the government.
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I think we have a very brief window of opportunity to deal with climate change. No longer than a decade at most.
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It would be immoral to leave young people with a climate system spiraling out of control.
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A level of no more than 350 ppm is still feasible, with the help of reforestation and improved agricultural practices, but just barely - time is running out.
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The five-year mean global temperature has been flat for the last decade
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The greatest danger hanging over our children and grandchildren is initiation of changes that will be irreversible on any time scale that humans can imagine.
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The forcings that drive long-term climate change are not known with an accuracy sufficient to define future climate change.
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Adding CO2 to the air is like throwing another blanket on the bed.
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Only in the last few years did the science crystallize, revealing the urgency - our planet really is in peril. If we do not change course soon, we will hand our children a situation that is out of their control.
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...chief executives of large fossil fuel companies to [should] be put on trial for high crimes against humanity and nature [Hansen] accusing them of actively spreading doubt about global warming in the same way that tobacco companies blurred the links between smoking and cancer.
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CEOs of fossil energy companies know what they are doing and are aware of long-term consequences of continued business as usual. In my opinion, these CEOs should be tried for high crimes against humanity and nature.
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The fact is fossil fuel carbon will stay in the surface climate system for millennia.
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As you get more global warming, you should see an increase in the extremes of the hydrological cycle - droughts and floods and heavy precipitation.
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