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Computare
5 - How much credit for CO2 reduction?
How would the process be financed?

There is substantial evidence that charcoal can last for hundreds to thousands of years. Indeed, it often provides the material for carbon dating related to archeological  and other studies. Carbon dating is central to understanding the Terra Preta soils found in South America and elsewhere.

A credit scheme could be developed and factored into cap and trade policies currently studied as a means of carbon dioxide management.