Several 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.
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.
As a mechanical engineer raised on a farm,
I’m highly intrigued by this.
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.
Energy will be needed to do this.