"The number of megacities has multiplied over the past 50 years,
to the extent that they now provide a home to 9% of the
world's urban population
■
Their importance in the national and global economy is
disproportionately high
■
City governance is having to adapt to the challenge of
delivering holistic solutions across vast metropolitan regions
■
City managers must strike the balance between three overriding
concerns: Economic competitiveness, environment and
quality of life for urban residents"
An amazing interactive video in 4 parts, created from images from the NY Times archives. At any point you can stop and explore the content in more detail.