Scientist Dan Kammen explains the means to provide sustenance to a city with a population of 18 million.
Efforts to meet a megalopolis' transportation needs are examined.
Addressing garbage issues in the megalopolis.
Efforts to create energy-efficient buildings are examined.
The means to generate energy for the megalopolis are examined.
The top five technologies from the series are compared to determine which has the greatest potential to transform the imaginary future megacity.