Geoengineering,or hacking soil’s climate system to cool the planet, is a controversial field that promises to either save our collective asses or bring on the apocalypse . Now, or scientists have discovered a major problem with one well-liked geoengineering scheme that entails dumping a bunch of iron into the ocean to soak up carbon dioxide. Basically,the contrivance is not supported by the geologic record.
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Source: gawker.com