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<DIV>I wonder if anyone has tried to clean up contaminated land with
biochar? What effect would it have on heavy metals or oil based
contaminants? Lots of prime real estate worthless because of trace contaminants.
</DIV>
<DIV> </DIV>
<DIV> Dan Dimiduk </DIV>
<DIV> </DIV>
<DIV>
<DIV>In a message dated 1/18/2013 5:34:45 P.M. Eastern Standard Time,
rongretlarson@comcast.net writes:</DIV>
<BLOCKQUOTE
style="BORDER-LEFT: blue 2px solid; PADDING-LEFT: 5px; MARGIN-LEFT: 5px"><FONT
style="BACKGROUND-COLOR: transparent" color=#000000 size=3 face=Arial>Kevin,
Crispin and list:<BR><BR> This is to also answer the two following
messages from yourselves. I did not find them helpful - as they assume
the only economics relate to the carbon credit. They assume nothing
(repeat nothing) about the value to the user in outyear ag benefits.
Tell me how farmers in the world will react to news that (for example) land
worth zero today can be brought up to a productivity level the same as other
existing ag land nearby (same rainfall etc.) Let's say that land
can, after applying biochar be worth $500/ha rather than $0/ha. If
those farmers have a discount rate of 5% or 50% will make a big difference on
how much they will be willing to spend per tonne of biochar and how many
tonnes per ha (which could be in rows or holes - not uniformly
scattered). Which discount rate are you using for these out-year
benefit computations? <BR> You can't prove biochar is
worthless by talking to this list only about credits of $6/tonne
CO2.<BR><BR></FONT></BLOCKQUOTE></DIV></FONT></BODY></HTML>