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Dear EarthTalk : The term “sustainable communities” gets bantered around quite a bit today. Could you define it for me? —Holly Parker, Mechanicsburg, Pa. Kaid Benfield, Sustainable Communities program director at the Natural Resources Defense Council (NRDC), uses the term “sustainable communities” to describe places “where use of resources and emissions of greenhouse gases and other pollutants are going down, not up; where the air and waterways are accessible and clean; where land is used efficiently and shared parks and public spaces are plentiful and easily visited; where people of different ages, income levels and cultural backgrounds share equally in environmental, social and cultural benefits; where many needs of daily life can be met within a 20-minute walk and all may be met within a 20-minute transit ride; where industry and economic opportunity emphasize healthy, environmentally sound practices.” In his March 2011 NRDC ‘Switchboard’ blog post entitled “A Trip to Sustainaville,” Benfield lays out his vision for what a model of sustainable communities could look like, with neighborhoods sporting healthy amounts of green space and shared vegetable gardens; mass transit, biking and walking replacing the majority of automobile traffic; and mixed use communities where schools, residences and commercial spaces are near each other and are powered by solar panels, geothermal heat pumps or windmills.

View Original Article on scientificamerican.com