FILE - In this Feb. 14, 2017 file photo, a rooftop is covered with solar panels at the Brooklyn Navy Yard, in New York. Denver may become the latest city to require rooftop gardens or solar panels on big new buildings, which backers say will keep the outdoor air cooler, make storm water easier to manage and reduce the amount of energy burned by air conditioners. A ballot initiative mandating environment-friendly roofs in Denver had 53 percent approval in unofficial returns Thursday, with about 85 percent of the votes counted.
FILE - In this Feb. 14, 2017 file photo, a rooftop is covered with solar panels at the Brooklyn Navy Yard, in New York. Denver may become the latest city to require rooftop gardens or solar panels on big new buildings, which backers say will keep the outdoor air cooler, make storm water easier to manage and reduce the amount of energy burned by air conditioners. A ballot initiative mandating environment-friendly roofs in Denver had 53 percent approval in unofficial returns Thursday, with about 85 percent of the votes counted. Mark Lennihan, File AP Photo
FILE - In this Feb. 14, 2017 file photo, a rooftop is covered with solar panels at the Brooklyn Navy Yard, in New York. Denver may become the latest city to require rooftop gardens or solar panels on big new buildings, which backers say will keep the outdoor air cooler, make storm water easier to manage and reduce the amount of energy burned by air conditioners. A ballot initiative mandating environment-friendly roofs in Denver had 53 percent approval in unofficial returns Thursday, with about 85 percent of the votes counted. Mark Lennihan, File AP Photo

Denver votes to require environment-friendly 'green' roofs

November 09, 2017 10:41 PM

UPDATED November 09, 2017 10:43 PM

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