[FoRK] peak coal

Eugen Leitl eugen at leitl.org
Tue Oct 27 12:54:19 PDT 2009

On Tue, Oct 27, 2009 at 11:22:42AM -0700, Ken Ganshirt @ Yahoo wrote:

> > http://www.pnas.org/content/103/5/1209.full
> > 
> Thanks for that. They did a good job of using plain language without detracting from the technical credibility.

I don't see any mention of ore richness going down 
versus energy used for extraction going up. Including
EROEI for energy extraction itself, of course.

Eugen* Leitl <a href="http://leitl.org">leitl</a> http://leitl.org
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