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Hothouse Earth: climate change making for unwanted feedback

By Gwynne Dyer      

Global warming driven directly by human emissions of carbon dioxide and other greenhouse gases is only part of the problem—the smaller part.

The best we can do is try to stabilize the warming at or just below 2 C, and that will not be possible without major human interventions in the climate system. The 'Stabilized Earth' is not a natural stopping place: staying there would require 'deep cuts in greenhouse gas emissions, protection and enhancement of biosphere carbon sinks, efforts to remove CO2 from the atmosphere, (and) possibly solar radiation management,' writes Gwynne Dyer. Photograph courtesy of Wikimedia Commons
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LONDON, U.K.—It would be churlish to ask what took them so long. Let us be grateful, instead, that the climate scientists are finally saying out loud what they all knew privately at least 10 years ago. What 16 of them are now saying, in an article in the Proceedings of the National Academy of Sciences is that if we don’t soon get off the highway we are currently travelling on, we will be irrevocably committed to a “Hothouse

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