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Biochar is a charcoal-like substance that can be created from most types of organic matter. It is of interest, inter alia, as a long-term carbon store for its agronomic properties. While there has been much discussion of biochar as a sustainable strategy ... read more

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In 1879, the explorer Herbert Smith regaled the readers of Scribner’s Monthly with tales of the Amazon, covering everything from the tastiness of tapirs to the extraordi- nary fecundity of the sugar plantations. “The cane-field itself,” he wrote of ... read more

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The term “biochar” first appeared in the peer-reviewed scientific literature in 1999 where it was used to describe an activated carbon prepared from sorghum grain for use in a reverse-burn gasification (Chem Char) process for treating hazardous waste4... read more

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To meet the challenges of global climate change, greenhouse-gas emissions must be reduced. Emissions from fossil fuels are the largest contributor to the anthropogenic greenhouse effect, so a reduction in fossil-energy use is a clear priority1. Yet, becau... read more

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As multibillion-dollar projects intended to sequester carbon dioxide (CO2) in deep geological storage continue to seek financial support, the fertile black soils in the Amazon basin suggest a cheaper, lower-tech route towards the same destination. Scatter... read more