One hectare of industrial hemp can absorb 22t of carbon dioxide, and as it can grow to 4m high in 100 days this makes it one of the fastest carbon-to-biomass converters available, more efficient than agro-forestry. Each kilogram of insulation locks away 0.51 kgCO2e (A1-3, LCA) and it can do so in less time than it takes to build a house.
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