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Earth

Polluting ships have been doing the climate a favour

By Fred Pearce

17 March 2010

New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

Geoengineering – by accident

(Image: Thierry Dosogne/Image Bank)

ENVIRONMENTAL paradoxes don’t come much bigger. In July this year, the world’s shipping lines will begin to apply pollution-cutting rules that will save tens of thousands of lives a year. Yet these very measures – which will radically cut sulphur emissions from ships – have a downside: they will also increase global warming.

When it meets next week, the Marine Environment Protection Committee of the International Maritime Organization (IMO), the UN body that regulates world shipping, will not even be discussing setting limits on regulating the carbon emissions of shipping. Yet it will confirm plans…

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