A mechanic assembles a bike at the Trek Bicycle Shop in San Diego, California, U.S., on Friday, May 15, 2020.
Sandy Huffaker—Bloomberg

Bicycles are plenty eco-friendly, but building and shipping them still exacts a toll. Trek Bicycle in July became the world’s first major bicycle manufacturer to quantify that toll, publishing a sustainability report that found that producing and shipping each bike emits the same amount of carbon energy as an average car driving 430 miles. It now plans to reduce its reliance on air freight, use more sustainable materials, and consolidate shipments. The company’s hope, says president John Burke, is that “other companies in the bike business can do the same thing.”

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