I see the issue as a mixture of these comments – poor agricultural practice depletes carbon, dumping it into the atmosphere. Good practices could reverse at least some of this. I have seen numbers of 50 GT for US soil recovery, and I challenge any of us energy wonks to come up with numbers like that. Sorry I don't have a citation for that.
I'm really thinking toward the post 2050 negative carbon regime, but it seems that encouraging "all of the above" is a good idea. R Roger D. Aines Fuel Cycle Innovations Program Leader E Programs, Global Security Lawrence Livermore National Laboratory Mail Stop L-090 Livermore, CA 94551 925 423-7184 925 998-2915 cell Administrative Contact Michelle Herawi [email protected]<mailto:[email protected]> 925 423-4964 From: David desJardins <[email protected]<mailto:[email protected]>> Date: Thursday, February 12, 2015 9:40 AM To: Fred Zimmerman <[email protected]<mailto:[email protected]>>, John HARTE <[email protected]<mailto:[email protected]>> Cc: Ken Caldeira <[email protected]<mailto:[email protected]>>, "Aines, Roger D." <[email protected]<mailto:[email protected]>>, Robert Socolow <[email protected]<mailto:[email protected]>>, "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>>, geoengineering <[email protected]<mailto:[email protected]>> Subject: Re: [geo] A closer look at the flawed studies behind policies used to promote 'low-carbon' biofuels | University of Michigan News On Thu Feb 12 2015 at 9:32:23 AM Fred Zimmerman <[email protected]<mailto:[email protected]>> wrote: For an example of what John is talking about, see http://ourworld.unu.edu/en/japanese-agricultural-heritage-systems-recognized. Japanese traditional agricultural practices are based on maintaining coherent local biomes as opposed to razing them and creating monocultures. How many calories/acre does this produce, compared to modern industrial agriculture? I'm skeptical that this is more efficient/effective than making high-output use of the farms and fields we have, while preserving remaining land in a natural state. Especially since we've already got a lot of land that is either in industrial agriculture now, or in non-intensive agriculture that has still eliminated essentially all of the native species. -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/d/optout.
