| Set in an enclosed valley between the coastal range and the Andes Mountains, Santiago, Chile, experiences high levels of air pollution. Vehicular and industrial emissions, street dust, thermal inversions and the city’s location all contribute to the problem. In 1997 Chile and neighboring Argentina opened a pipeline to pump natural gas from Argentina to Santiago. Because natural gas burns much cleaner than other fuels, Chileans hope the new pipeline will help reduce pollution and improve Santiago’s air quality. |
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