Reader Question: Green Roof vs. Solar Panels

First we had Trees vs. Solar Panels, now this: "I'm curious which would be more advantageous to the environment. Installing a green roof or solar panels. It seems like they're vying for the same spot on my roof. Chris R." Dear readers, please share your wisdom in the comments. See also: ::Solar Category, ::Inhabitat Has the Goods on Green Roofs, ::China's Learning to Love Green Roofs, ::Green Roofs: A primer, ::Toronto Goes Green (Well, its Roofs, Anyways), ::Chicago Wal-Mart to Sprout Green Roof

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