Environmental Crisis in SaCaI
Air pollution is a big problem in the countries of Brazil, Chile, and Colombia. The contributing factors are demographic growth and the development of more buildings and cities. Vehicles and transportation are also another factor that is leading towards air pollution.

external image Brazil%20cubatao%20Air%20pollution%2016%20color-1-resized-600.jpg

Sources:
http://voices.yahoo.com/environmental-problems-latin-america-304508.html?cat=7
http://blog.libertypackaging.com/Portals/97259/images/Brazil%20cubatao%20Air%20pollution%2016%20color-1-resized-600.jpg