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Climate Science, CO2, CO2 mitigation?, Settled science?

James Hansen Says Coal Is Greening The Planet!?!

Once again, there is more common sense contained in the comments section than the paper presented in the lead blog item. Never forget to read the comments, it’s a vital part of one’s education.

Watts Up With That?

Guest Post by Willis Eschenbach

There’s an interesting measure of atmospheric CO2, called the “airborne fraction”. The airborne fraction is the fraction of the CO2 emitted each year which remains in the atmosphere. When humans emit say 9 gigatonnes of carbon, only about half of that remains in the air. The other half of the emitted carbon is absorbed, “sequestered” in some semi-permanent fashion, by various carbon sinks in the land and the ocean.

Dr. James Hansen of NASA, another in the long line of climate alarmists who don’t mind shafting the poor with expensive energy, has come out with a most surprising statement in his latest paper, Climate forcing growth rates: doubling down on our Faustian bargain, hereinafter Hansen 2012. The statement involves Hansen et al.’s explanation for a claimed recent decrease in the airborne fraction. Here’s their graphic showing the changes in the airborne fraction since 1960.

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Discussion

2 thoughts on “James Hansen Says Coal Is Greening The Planet!?!

  1. The alarmists have reams of wild estimates about the persistency of anthropogenic CO2 and this calculation method throws most of them under the bus. The ball should be thrown back to the alarmists with the message ‘sort out your settled science or we will continue to laugh at you’

    Posted by climatefraudwatcher | March 30, 2013, 11:33 am

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