VAXJO, Sweden - When this quiet city in southern Sweden decided in 1996 to wean itself off fossil fuels, most people doubted the ambitious goal would have any impact beyond the town limits. A few melting glaciers later, Vaxjo is attracting a green pilgrimage of politicians, scientists and business leaders from as far afield as the U.S. and North Korea seeking inspiration from a city program that has allowed it to cut CO2 emissions 30 percent since 1993.

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