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Radical Plan Calls for Placing Giant Tubes in Ocean to Combat Global Warming
James Lovelock and Chris Rapley claim that such climate engineering solutions might be the only way to hold global warming at bay given its current progress.
Global warming appears to be an irreversible process, and if we don't do anything then the world will just heat up to a stable, hot state. The stakes are now so high that we have to act, said Lovelock.
Other experts are however, sceptical, and have pointed out that the scheme could release more carbon than it absorbs while putting fragile marine life in danger.
The duo, nevertheless, say their proposal is the oceanic equivalent of planting trees.
With more than two-thirds of Earth covered in ocean, the plan could be applied on a much grander scale, they add.
They say their preliminary calculations indicate that an array of between 10,000 and 100,000 pipes would be required, with each pipe around 33 feet (10 meters) wide and 330 feet (100 meters) long.
Wave energy would make the pipes bob up and down. One-way valves inside the pipes would then force water to circulate, bringing nutrient-rich water up to the surface, the scientists write in their study in the journal Nature.
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