Containers full of quicklime could help clean up one of the world’s filthiest industries.
Global shipping, which is fuelled predominantly by marine diesel, belches out around 3% of planetary greenhouse gas emissions, making the sector a bigger polluter than aviation.
Now, London-based startup Seabound has come up with a solution to help freighters chart a course for net zero, with a surprisingly simple carbon capture system. The lo-fi method involves funnelling ships’ exhaust fumes through calcium oxide pebbles, also known as quicklime. They soak up the CO2, which leads to a chemical reaction that turns them into harmless limestone, which can be safely stored or even sold for profit.
