Cities are far more environmentally friendly. Just in terms of energy consumption, people in cities save vast amounts of CO_2 by: - having shorter commutes -

Cities are far more environmentally friendly. Just in terms of energy consumption, people in cities save vast amounts of CO_2 by: - having shorter commutes - driving smaller cars, or even... - ...using public transport - using less real estate (lower heating/cooling costs) - living in large, shared houses with better space-to-surface ratios They also protect the environment in the classical, i. e. by not building houses with manicured but dead lawns in it.