Source: NASA. (2003). Earth and the Sun. Solar System Exploration [Image]. Retrieved October 6, 2009, from http://solarsystem.nasa.gov/multimedia/display.cfm?IM_ID=188
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Video courtesy of the Future Megacities project from Germany's Federal Ministry of Education and Research.
Future Megacities - Solid Waste Management in Addis Ababa, Ethiopia from crossdocs on Vimeo.