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9 not-so-crazy ideas to combat climate change

Feeding plankton blooms with huge wave-powered pumps

Photo: NASA/public domain

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Force-feed plankton blooms

Plankton are one of the most important carbon sinks on Earth. Although they are some of the ocean's smallest organisms, as a group they absorb carbon dioxide by the ton and also produce a significant portion of the Earth's oxygen. Thus, some scientists have proposed placing huge wave-powered pumps on the swells of the Pacific Ocean that would force the nutrient-rich water in the colder depths to mix with the warmer surface waters, essentially acting as a feedlot for large plankton blooms.