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Pressure from environmental groups looks set to scupper an international research team's attempt to test the feasibility of sequestrating large volumes of carbon dioxide in the ocean.

The Norwegian government has blocked the proposed release of five tonnes of liquefied carbon dioxide off its coast. Three months ago, the researchers' plan to carry out the same experiment on a larger scale near Hawaii was abandoned in the face of environmental objections (see Ocean carbon study to quit Hawaii).

Now the team is running out of options and may have to abandon the idea altogether. That would be a major blow to global efforts to pursue the technique as a possible response to global warming - and a victory for green groups, some of whom regard sequestration as a diversion from the need to cut carbon dioxide emissions.

Link to full Nature news story

Reference: Nature 419, 6 (2002)