Corporations love to show off new constructions with fancy eco features. For truly green architecture, it’s best to build on structures already in place. Thanks for listening to WIRED. Talk to you next time for more stories from WIRED.com and read this story here.

<p>Corporations love to show off new constructions with fancy eco features. For truly green architecture, it’s best to build on structures already in place. 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/to-make-a-greener-building-start-with-an-old-one/">here</a>.</p>

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