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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.
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
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Agricultural
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More quotes by James Hansen
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.
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. So that is what we can look forward to if we don't act soon.
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Money has too big an influence on our politics in Washington and somehow we need to do something about that.
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We have known since the 1800s that carbon dioxide traps heat in the atmosphere. The right amount keeps the climate conducive to human life.
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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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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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If we fail to act, we will end up with a different planet.
James Hansen
The evidence for human-made climate change is overwhelming.
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The urgency derives from the nearness of climate tipping points.
James Hansen
The forcings that drive long-term climate change are not known with an accuracy sufficient to define future climate change.
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The fact is fossil fuel carbon will stay in the surface climate system for millennia.
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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.
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Well, you know what happens to crime when the heat goes up.
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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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Some Democrats deserve to be criticized.
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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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Adding CO2 to the air is like throwing another blanket on the bed.
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The five-year mean global temperature has been flat for the last decade
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Because cap and trade is enforced through the selling and trading of permits, it actually perpetuates the pollution it is supposed to eliminate.
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The 5-year mean global temperature has been flat for the last decade, which we interpret as a combination of natural variability and a slow down in the growth rate of net climate forcing.
James Hansen
