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Carbon-Negative Network
David Yarrow's comprehensive site about biochar and carbon-negative activities as well as resources. A very good jumping-off point.
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112 |
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Superdirt Made Lost Amazon Cities Possible?
Part of a National Geographic television program on the Amazon.
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155 |
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Biochar Resources
A terrific set of resources about biochar, terra preta, carbon farming, etc. Lots of material to download.
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191 |
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Eprida
"Eprida offers a revolutionary new energy technology for sustainable fuels and sustainable income while producing coproducts which also allow us to remove greenhouse gases from the air. We mimic nature's methods for biomass conversion and build a sustainable food and energy production."
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132 |
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SOS Forests: Western Institute for Study of Environmental Commentary
Review of book in Terra Preta soils.
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105 |
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WordPress Tags: Terra Preta
Blogs that discuss Terra Preta using WordPress.
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194 |
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Cornell Terra Preta Research
Dr. Johannes Lehmann's research department.
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144 |
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Can 'biochar' save the planet?
CNN: Biochar production at a University of Georgia laboratory.
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177 |
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Amazon Terra Preta
Article about Dr. Johannes Lehmann's research on Terra Preta.
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379 |
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Terra Preta Soil Technology
Followed by a good discussion on quantities f carbon stored per hectar of land.
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255 |
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The Great Biochar Debate
A summary of the pros and cons of biochar that was started by George Monbiot (against) and the defense by scientists James Lovelock and Jim Hansen.
And I think this is just the beginning.
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249 |
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Mongabay article on Terra Preta
Mongabay and Biopact.
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148 |
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The Other Side of the Argument: Biochar is Geo-Engineering
"'Biochar', a new big threat to people, land, and ecosystems
"Keep 'biochar' and soils out of carbon trading
"Caution urged against proposals for large scale use of charcoal in soils for climate change mitigation and soil reclamation"
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104 |
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14 |
Terra Preta Home Page, Univ. of Bayreuth
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135 |
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World Changing: Terra Preta
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Terra PretaCarbon sequestration faces some major hurdles. Technical geosequestration methods 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 and are only as stable the ecosystems themselves. 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, as a recent article in the journal Nature reveals."
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177 |
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James Lovelock: Video Interview
"James Lovelock is best known as the father of Gaia theory; the idea that all parts of our planet form a complex interacting system, like a single organism. His new book depicts Gaia in trouble. In this interview Lovelock sounds a final warning for planet earth and enthuses about his upcoming space trip."
And by the way, this future astronaut is 90 years old!
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124 |
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Eprida: Carbon Negative Electricity
YouTube video of Eprida project, generating electricity from carbon negative fuel.
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224 |
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18 |
Green Energy News: Terra Preta
Source for links on clean energy news and developments.
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138 |
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19 |
Pellet Production
Various size pellet mills and equipment for making biomass pellets.
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117 |
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Small Diesel Pellet Mill
YouTube video of a small diesel pellet mill in operation.
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311 |
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21 |
Biochar: one way to deal with more fire-prone forests
From the NY Times. A forest management project in Colorado that is looking at pyrolysis of unwanted wood to prevent fires, etc.
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119 |
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Biochar adds to food production in temperate climates
"Alfred Gathorne-Hardy and colleagues at Imperial College, London applied varying amounts of biochar and of nitrogen fertiliser to barley. Their research showed that biochar improved yields substantially but only in those trials when large amounts of artificial fertiliser were also applied. Adding 20 tonnes a hectare (2 kg a square metre) of biochar to a soil fertilised with 100 kg of nitrogen a hectare increased the crop yield by over 30%. Loosely put, biochar improves the effectiveness of the nitrogen. But for soils with no added fertiliser, increasingly heavy applications of biochar tended slightly to reduce the crop yield." Discussion of study.
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187 |
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Cowboy Charcoal
An article describing how the Cowboy Charcoal Company makes its lump charcoal using a retort system.
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203 |
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Make Biochar
" To make biochar, pile up woody debris in a shallow pit in a garden bed. Burn the brush until the smoke tins and then damp-down the fire by covering it with about an inch of soil. Let it smolder until the brush is charred, then put the fire out."
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239 |
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:Char Grilled" Australian Broadcasting Documentary
"Once considered blue sky technology, there's a growing view that biochar is Australia's great black hope in the fight against climate change."
Shows improvements in crop yields, pro and con debates.
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98 |
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26 |
1491 ... the Americas Before Columbus
A book that has profoundly changed our notions of life in the Americas before Columbus.
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97 |
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Biochar.Info
A Swiss consulting group... "We offer consulting services to help our clients implement a biochar production and incorporation program that is tailor made to their specific needs and context. We are a non-profit organization focused on sustainable solutions to the related problems of soil fertility and climate change. As such, we are in a position to offer our clients cost effective, wide ranging advice from a neutral standpoint."
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226 |
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Biochar Systems
"Biochar Systems brings together the business, science, and technology of biochar; convening the brightest minds to fulfill the promise of biochar as a solution to the challenges of climate change, soil fertility, and energy that we face today."
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91 |
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The virtues of biochar -- A new growth industry?
From the Economist: "CHARCOAL has rather gone out of fashion. Before the industrial revolution, whole forests disappeared into the charcoal-burners’ maw to provide the carbon that ironmakers need to reduce their ore to metal. Then, an English ironmaker called Abraham Darby discovered how to do the job with coke. From that point onward, the charcoal-burners’ days were numbered. The rise of coal, from which coke is produced, began, and so did the modern rise of carbon dioxide in the atmosphere.
"It is a sweet irony, therefore, that the latest fashion for dealing with global warming is to bring back charcoal. It has to be rebranded for modern consumers, of course, so it is now referred to as “biochar”. But there are those who think biochar may give humanity a new tool to attack the problem of global warming, by providing a convenient way of extracting CO2 from the atmosphere, burying it and improving the quality of the soil on the way."
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100 |
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What is Biochar?
This website of the International Biochar Initiative defines biochar:
"Biochar is the carbon (C) rich product when biomass, such as wood, manure or leaves, is heated with little or no available air. In more technical terms, biochar is produced by thermal decomposition of organic material under limited supply of oxygen (O2), and at relatively low temperatures (ating soil water, and to provide carbon storage."
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107 |
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