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Some
organizations are proposing to produce charcoal from agricultural wastes as a
soil amendment. One proposal generates energy and adds fertilizer as shown in
the slide.
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Conversion of a
fraction of the wastes from our 24
billion tonnes of agricultural production into long lasting charcoal could
help counter the 6 billion tonnes of emissions from fossil fuel.
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As a mechanical
engineer raised on a farm, I’m highly intrigued by this.
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We burn fossil
fuels to release carbon dioxide. Plants absorb it. We heat plant material to establish a
durable carbon sink which enhances the soil.
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Energy will be
needed to do this.
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