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Crosscurrents

99% Invisible: Guilt-Free

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Composting is just one way we’re thinking about reducing waste, and when it works, we notice: landfills slim down, and gardens bulk up. But then there’s the waste that doesn’t take up space, like energy.

A collective in San Francisco’s Mission District, Civil Twilight, has an answer to the amount of streetlight that we waste every night when the sun goes down. The collective’s proposed lights sense and respond to ambient moonlight, allowing people in urban areas to reconnect with the nighttime cycles that were lost long ago to light pollution.

In this episode of 99% Invisible, “Guilt-Free,” we explore the night sky, and a sustainable future, with host Roman Mars.

99% Invisible is produced by Roman Mars, with support from LUNAR. It’s a project of KALW, the American Institute of Architects, San Francisco and the Center for Architecture and Design.

Roman Mars is host and producer of KALW’s 99% Invisible, a short radio show about design and architecture. The 99% Invisible podcast recently peaked at #8 in the iTunes rankings for all podcasts, as well as #1 in both the Arts and Design categories. He is also the host, producer and program director of Public Radio Remix from PRX, a 24-hour, experimental public radio story stream broadcast on XM 123 and public radio stations across the country. He was a founding producer at PRX/NPR’s Snap Judgment and Senior Producer at the Third Coast International Audio Festival.