Before the industrial revolution, the level of CO₂ in the atmosphere was 280 parts per million (ppm). Currently, the level is 413. According to scientists, the critical figure should not exceed 430. However – the level will hit 430 ppm already in a few years! We really need to cut emissions. But cutting emissions won’t be enough. In order to reach the Paris Agreement target, we must also remove existing CO₂ from the atmosphere.
Should not exceed
How do we do that?
Food waste, sewage sludge, and other organic waste streams are very well suited for treatment by anaerobic digestion. This is a technical term for breaking down the waste in a low-oxygen environment where it generates a mixture of biogenic methane and CO₂. The methane has the same chemical properties as that found in natural gas, but is not a fossil fuel. This is great source of renewable energy that we can use to displace fossil fuels, but the CO₂ component needs to get stripped away first. The process of removing the CO₂ from the biomethane is called upgrading and results in 2,000-30,000 tonnes of high-purity biogenic CO₂ getting emitted annually from each plant.
Inherit works with these biogas plants to remove this CO₂ from the atmosphere by redirecting it to safe, geological storage.
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