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UNESCO deals another blow to ocean fertilization hopes

Using ocean fertilization to fight global warming has little chance of success, an independent group of experts concludes in a report released today.

Scientists first suggested in the late 1980s that adding iron or other nutrients to nutrient-poor ocean regions might stimulate blooms of photosynthesizing algae which use dissolved carbon dioxide to grow. They reasoned that such ocean fertilization might remove substantial amounts of the greenhouse gas from the atmosphere and so slow the rate of global warming.

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