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Originally Posted by Essay
...They come close with this last suggestion, but NOBODY has mentioned
Sequestration in Soils! ...let alone Terra Preta. 
allow me to repeat....
40-80 Billion Tonnes of Carbon (just in cropland soils) + even larger potential sequestration by restoring "the soils of degraded and desertified lands" would be enough to return CO2 to pre-industrial levels within a few decades.
Quote:
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Originally Posted by **
This mitigation option was set-aside in the Kyoto negotiations ostensibly because of the perceived difficulty and cost of verifying that Carbon is actually being sequestered and maintained in soils.
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Why isn't this solution being implemented?
**Storing Carbon in Agricultural Soils: A Multi-purpose Environmental Strategy
Edited by:
Norman J. Rosenberg and Roberto C. Izaurralde
Reprinted from Climatic Change, Vol.51, no.1, 2001
Kluwer Academic Publishers
ISBN 0-7923-7149-6
...and this isn't the high-cost, high-tech "carbon capture" CO2 sequestration schemes that energy companies are researching.
It's very low cost, requiring mainly organization and a change in culture and behaviour.
Becoming Type 1....
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How could 'they' be so right about so much complexity, and so wrong about such simplicity? Mmmm...5th grade science; terra preta soil in the Amazon basin has charcoal mixed in it that has remained for hundreds of years.
An asteroid/comet impact over North American ~11,0000 years ago left a layer of charcoal from the resulting burned forests that we find today.
How do we get coal?
I agree this is a reasonble method for sequestering some carbon, and I think the best chance of implementing it is distributed small scale operations. Everybody can feel good about throwing some charcoal in/on the garden or lawn, if for no other reason than to retain more moisture; no 'belief' in 'global warming' required.
