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PLANS to rein in global warming by sucking carbon dioxide out of the
atmosphere and storing it in the ocean have been criticised by scientists, who
warn that they may have disastrous consequences for sea life. But despite their
concerns, there appears to be little anyone can do to stop the projects.

Researchers have been toying with the idea of fertilising the ocean with iron
salts. Add iron, the thinking goes, and phytoplankton will bloom, taking
CO₂ from the atmosphere down to the deep ocean when it dies
(Â鶹´«Ã½, 2 October 1999, p 34).

Now entrepreneur Michael…