Earth Moves (or not) Toward a Sustainable Future

1
Over the next two decades the number of city dwellers is expected to rise to 5 billion, putting pressure on transportation systems, energy and water use, and waste disposal. (Shankar S. Oldandsolo)

2
Smoke rises from the La Cygne Generating Station power plant in Kansas. Cities account for 70% of climate changing emissions from power plants, transportation and buildings.

3
Mexico City is among the most polluted cities in the world. While cities account for 65 percent of global GDP, they are faced with public health problems from dangerous pollution.

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Brazil, with an 85% urban population, is making aggressive moves to implement public transport. This photo shows a typical traffic jam in Sao Paulo.