Net-zero neighborhoods.

Canary Media profiles a net-zero neighborhood of 28 homes in Colorado. There are already net-zero neighborhoods in Hawaii, Utah and Wisconsin and more are under construction across the country.

The homes in the Colorado neighborhood called Geos are designed using the passive house system, which means they have ultra-tight seals and insulation, use solar and have electric building equipment.

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Cat Clifford

Senior Science and Economics Correspondent