[Terrapreta] Tree planting -- a bit more

[Duane Pendergast]

            Thanks Edward and Lou,

 

I see my "simplistic thinking" sparked some relevant observations from you
both with respect to the use of "waste" biomaterial for terra preta. Let me
suggest that a need for several grades of char-charcoal might evolve in our
quest for a brave new carbon conscious world. For example;

 

1) Food grade - this one would be the basis for the building of terra preta
soil to be used for food production. Some clean "waste" material from farms
and food production plants would be the source of char for this purpose. It
would be produced close to the point of use to avoid excessive
transportation costs.

 

2) Forest grade - Forests will continue to be harvested - whether by clear
cut or selective techniques. Some of the "waste" material could contribute
to the building of terra preta forest soil. Such an approach could lead to
the establishment of enduring forest carbon sinks as the component
vegetation goes through its life cycle.

 

3) Landfill grade - Some biomaterial might become so contaminated with
harmful materials that it would not be suitable for the above purposes.
Housing materials might be in that category. It could still be used to
produce some energy and some char which could be simply buried as a carbon
sink taking some carbon dioxide from the atmosphere. Of course there is
potential for sorting and processing the waste stream from our cities to try
and make the most of uncontaminated biomaterials. Wouldn't that approach be
better than currently proposed incentives to those who would earn carbon
dioxide reduction credits from the needless generation of landfill methane?

 

Many simplistic ideas will need to be integrated to establish workable
carbon dioxide control.

 

Duane

 

 

 

 

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