Scientists have gone to the Antarctic to see whether iron can help to avert climate change. The theory that iron can affect marine productivity was first put forward in the 1920s. If it is right, it could have several significant consequences.
Tuesday, January 19, 1999 Published at 13:12 GMT
The southern ocean may shed new light on global warming
By Environment Correspondent Alex Kirby
An international team of scientists is setting off for the Antarctic to test whether iron could help to slow down climate change.
The team includes
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