Going Green: Rooftop Conversion Effort Has Cool Results
Updated: 06/23/2012 05:30 AM
By: NY1 News
NY1 VIDEO: Bill Ulfelder of the Nature Conservancy talks about the benefits of converting the city's 14,000 acres of rooftops into so-called green roofs. For more ways to go green, check out nature.org/ny1.
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