Figure 9.31 Europe’s renewable energy island. Samsø, located off the coast of Denmark, is a model of alternative energy in Europe. This photo depicts some of the island’s wind-powered turbines, which supply 100 percent of the 4,200 residents’ electrical needs. Solar power and wood chips are used to provide heating. In all, Samsø removes more carbon dioxide from the atmosphere than it contributes. (Slim ALLAGUI/AFP/Getty Images.)