Agrichar was mentioned in our interview with Karl Schroeder as something he would spend millions of dollars on developing if he had a budget to use to support environmentally beneficial technologies. Until then, I hadn't been familiar with the concept, but if a bright guy like Karl thought it was important, I wanted to find out more about it.
A recent article by Jeremy Faludi on the WorldChanging website (where Karl is also a contributing blogger, but the article is not by him) gives a good overview of the potential that agrichar, or terra preta as it is also known, has to provide energy, as well as carbon sequestration and improved soil nutrient levels.
I've also written a longer article of my own about it over at GreenOptions.
Previously on EcoGeek: Carbon-Negative Biofuels.
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