How wind tech hopes to help decarbonize cargo shipping

Inhabitants of the Marshall Islands—a chain of coral atolls in the center of the Pacific Ocean—rely on sea transportation for almost everything: moving people from one island to another, importing daily necessities from faraway nations, and exporting their local produce. For millennia they sailed largely in canoes, but much of their seafaring movement today involves big, bulky, diesel-fueled cargo ships that are heavy polluters. 

They’re not alone, of course. Cargo shipping is responsible...