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By harnessing wind power, high-tech sails can help cut marine pollution
By harnessing wind power, high-tech sails can help cut marine pollution
The rotors were hailed as a great achievement at the time (praised by Albert Einstein, among others) before cheap oil caused interest to wane. Ships, which transport more than 80% of the world’s goods, account for some 3% of humanity’s greenhouse-gas emissions, a similar fraction to aviation. This article appeared in the Science & technology section of the print edition under the headline “The second age of sail”
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