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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.

Carbon 124
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Test of Planet-Cooling Scheme Could Start in 2022

Cars That Think

This question of whether climate change becomes so bad that we have to do something to dull its impacts and reduce human suffering is a very big one,” says Keutsch, an atmospheric chemist. In 1991, when Mount Pinatubo erupted in the Philippines, it created a haze of particles so dense that it temporarily cooled the planet by.

Ozone 118