Hamburg, in northern Germany, is home to a one-of-a-kind district heating system. The hot water that supplies it is largely obtained from waste heat from the city’s copper smelter, meaning no CO2 is released.
Hamburg, in northern Germany, is home to a one-of-a-kind district heating system. The hot water that supplies it is largely obtained from waste heat from the city’s copper smelter, meaning no CO2 is released.