Around the world, dozens of ingenious projects are trying to 'trick' the ocean into absorbing more CO2. But critics warn of unforeseen consequencesTom Green has a plan to tackle climate change. The British biologist and director of the charity Project Vesta wants to turn a trillion tonnes of CO2 into rock, and sink it to the bottom of the sea.Green admits the idea is "audacious". It would involve locking away atmospheric carbon by dropping pea-coloured sand into the ocean. The sand is made of ground olivine - an abundant volcanic rock, known to jewellers as peridot - and, if Green's calculations are correct, depositing it offshore on 2% of the world's coastlines would capture 100% of total global annual carbon emissions. Continue reading...
Cloud spraying and hurricane slaying: could geoengineering fix the climate crisis?
23. června 2021 7:15
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Zdroj: The Guardian