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Ideas
have been proposed to remove CO2 directly
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from the
atmosphere.
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Iron Fertilization:
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1.Supertankers would spread millions of tons of iron over the
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ocean
surface.
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2.The iron stimulates growth of algae which consume carbon
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dioxide from the ocean surface as they grow.
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3.When the algae and the organisms that consume them die,
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they sink to the sea floor, taking the carbon with them.
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4.The ocean draws more carbon dioxide from the atmosphere to
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replace what the algae took from its surface.
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Carbon Sequestration:
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These techniques would involve removing the CO2
as it’s
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emitted from a power plant and either injecting it directly into
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the deep ocean or burying it deep in the ground.
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