Clearing forest and digging up soil releases lots of carbon into the atmosphere the very thing biofuels are supposed to be helping to prevent.
FORBES: U.S., Europe Going Opposite Way On Biofuels
Digging up contaminated soil releases odours previously trapped underground.
BBC: Hauxton factory
Moreover, soil containing biochar releases less methane and less nitrous oxide than its untreated counterparts, probably because the charcoal acts as a catalyst for the destruction of these gases.
ECONOMIST: Biochar could enrich soils and cut greenhouse gases as well
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