She quickly moved to nationwide publications, covering conflicts in Africa and other places for the Italian weekly magazine Epoca.

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But the new evidence published in weekly magazine Epoca, which broke the original story, could threaten Mr Dirceu's position too.

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They are part of the European Project on Ocean Acidification (EPOCA), an initiative employing over 100 researchers, more than 30 currently in the Arctic.

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The news magazine Epoca has alleged that while working for the state lottery in Rio de Janeiro, Mr Diniz demanded money from a would-be lottery operator.

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Though EPOCA is ambitious, and expensive, the mesocosms are too small to contain fish, and the experiments far too short to show what sort of adaptation might be possible over many years, and what its costs might be.

ECONOMIST: Ocean acidification