[Terrapreta] the writings of Dr. James E. Hansen

[Sean K. Barry]

Hi All,

Dr. James E. Hansen has said some very interesting things.

A fundamental point is that, in any event, we must move beyond fossil fuels reasonably soon.  The underlying reason is that a large fraction of CO2 emissions remains in the air for many centuries.  Thus the upshot: we must move to zero fossil fuel emissions.  This is a fact, a certainty, a lead pipe cinch.  So why not do it a bit sooner, in time to avert climate crises?  At the same time, we halt other pollution that comes from fossil fuels, including mercury pollution, conventional air pollution, problems stemming from mountain-top removal, etc.

I'll be reading him for days, Ron!

Regards,

SKB
  ----- Original Message ----- 
  From: Ron Larson<mailto:rongretlarson at comcast.net> 
  To: Greg and April<mailto:gregandapril at earthlink.net> ; Terra Preta<mailto:terrapreta at bioenergylists.org> 
  Sent: Saturday, April 12, 2008 11:26 AM
  Subject: Re: [Terrapreta] maybe controversial


  Greg and list members:

     I am primarily involved actively in promoting biochar because of my conviction that we are facing a very dire future because of global warming.  I have come to this conclusion over many years - but find my best source of information on this from the writings of Jim Hansen.  He sent a citation for a new short piece out a few days ago:  http://www.columbia.edu/~jeh1/mailings/20080410_YankeeTicketPrices.pdf<http://www.columbia.edu/~jeh1/mailings/20080410_YankeeTicketPrices.pdf>

      This is by far the most serious warning I have heard him make.  If anyone knows of a better authority on the subject than Jim Hansen, I hope they will let us know.

      In this latest "Yankees" writing, there is reference to another unpublished article (submitted to Science) that is the best single piece I have seen on the evidence for man's involvement.  I hope you will read especially this second one, which can be found at  http://arxiv.org/abs/0804.1126<http://arxiv.org/abs/0804.1126> 

  and the Supporting Material is at: 
  http://arxiv.org/abs/0804.1135<http://arxiv.org/abs/0804.1135> 

      Jim mentions biochar there.  If you (or anyone) remain unconvinced, I hope you will let us know why.   

      Apologies to all who think this is off target for this list.  I think we need to understand why some list members are disbelievers and do what we can to convert them.  If we do not have climate urgency going for us, the biochar topic will move much too slowly.

  Ron

  ----- Original Message ----- 

    From: Greg and April<mailto:gregandapril at earthlink.net> 
    To: Terra Preta<mailto:terrapreta at bioenergylists.org> 
    Sent: Saturday, April 12, 2008 9:44 AM
    Subject: Re: [Terrapreta] maybe controversial
            <snip> 
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