There are many ways land can reduce greenhouse gases and contribute to a greener future. Here are two that can serve as examples for other communities. Geoexchange or geothermal systems are just beginning to be adopted nationally, while community gardens are an ancient practice and resource.
Carr Everbach is a professor of engineering at Swarthmore College. He explains geoexchange/geothermal systems and discusses the large geoexchange system Swarthmore is putting in to provide heat and cooling for the entire campus. This system is a model for many other campuses and places where there are large open spaces with connected heating and cooling needs.
Sally McCabe is Associate Director of Community Education and Community Gardens at the Pennsylvania Horticultural Society. She discusses the role of community gardens in environmental sustainability and environmental justice, particularly in urban settings.
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