Global trade relies on ships powered by dirty fuel. To meet climate deadlines, some are proposing a return to wind power. Thanks for listening to WIRED. Talk to you next time for more stories from WIRED.com and read this story here.

<p>Global trade relies on ships powered by dirty fuel. To meet climate deadlines, some are proposing a return to wind power. Thanks for listening to WIRED. Talk to you next time for more stories from WIRED.com and read this story <a href="https://www.wired.com/story/massive-sails-power-ships-like-never-before/">here</a>.</p>

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