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Pilot Project Sends Kelp–and Carbon–to the Seafloor

Cars That Think

Last January, in the waters off Cebu City in the Philippines, researchers first deployed a huge flexible ring seeded with seaweed and spanned by spokelike ropes and tubes. Every nightfall, cranks mounted on a floating platform lower the ring 25 meters below the surface to expose the seaweed to cooler, more nutrient-rich water.

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Test of Planet-Cooling Scheme Could Start in 2022

Cars That Think

In 1991, when Mount Pinatubo erupted in the Philippines, it created a haze of particles so dense that it temporarily cooled the planet by. But sulfate aerosols—the combination of particles and water—can destroy the planet-protecting ozone layer. about 0.6 °C. It should be a little bit more diverse than a few people from Harvard.”.

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