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Terra Preta – CO2 sequestration with Amazonian Dark Earth

October 26th, 2006 | 1 Comment | Posted in CO2-Sequestration

You are at: Oilgae Blog, see also: Oilgae – Oil & Biodiesel from Algae

Terra Preta: Black is the New Green – David Zaks and Chad Monfreda @ this World Chaging article

Excerpts:

1. Technical geosequestration methods for CO2 could pump large amounts of CO2 deep underground but are still under development. On the other hand, natural methods that store carbon in living ecosystems may be possible in the short term but require huge swathes of land
2. An ideal solution, however, would combine the quick fix of biological methods with the absolute potential of technical ones. Terra preta may do just that.
3. Amazonian Dark Earth, or terra preta do indio is three times richer in nitrogen and phosphorous, and twenty times the carbon of normal soils, terra preta is the legacy of ancient Amazonians who predate Western civilization…
4. The difference between terra preta and ordinary soils is immense. A hectare of meter-deep terra preta can contain 250 tonnes of carbon, as opposed to 100 tonnes in unimproved soils from similar parent material…
5. There are some who believe that that a strategy combining biochar with biofuels could ultimately offset 9.5 billion tons of carbon per year-an amount equal to the total current fossil fuel emissions!
6. Danny Day, the founder of a company called Eprida is experimenting with systems that turn farm waste into hydrogen, biofuel, and biochar. He says, “We don’t maximize for hydrogen; we don’t maximize for biodisel; we don’t maximize for char…By being a little bit inefficient in each, we approximate nature and get a completely efficient cycle.”
7. Terra preta’s full beauty appears in this closed loop. Unlike traditional sequestration rates that follow diminishing marginal returns-aquifers fill up, forests mature-practices based on terra preta see increasing returns.

Full article here

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algOS – Biodiesel from Algae Open Source

Oilgae – Oil & Biodiesel from Algae provides links, directory, web links resources for algae-based biofuels & biodiesel. Intended to be useful for research, information, inputs, news for buyers, sellers, manufacturers, traders, suppliers, producers, exporters / importers of algal oil and algal fuels. Will provide info on biofuel feedstock, algal feedstocks, algae oil and link details on fuel from algae, bio-fuel, bio-diesel, algal oils & bio-fuels production and uses, biofuels trade & market resources, price data, statistics, prices, demand-supply for buyer, seller, manufacturer, trader, supplier, exporter and producer

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One Response to “Terra Preta – CO2 sequestration with Amazonian Dark Earth”

  1. New_biochar_land Says:

    You must read this
    “The Biochar Revolution” with “The Biochar Solution”
    http://biochar-books.com/
    The Biochar Revolution collects the results and best practical advice that these entrepreneurs have to offer to the biochar community. When practice and theory advance to the point where they meet in the middle, then we will truly see a biochar revolution.

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