"Its once great industries and industrial cities have emptied out".
But Glaeser argues such single-industry cities contained the seeds of their own downfall.
"Historically, single-industry cities eventually collapse," he says, referring to Silicon Valley and effectively throwing down the gauntlet.
One of the greatest impacts was the loss of hydroelectric power and water to industry, cities, and canals.
But before industry, cities, fishing, sugar cane, land clearing for grazing, pesticides, fertilisers, coal ports and tourism, the reef had the capacity to recover after a natural disaster.
There are people who want to just blow up in industry cities like Houston.
This is clearly a solvable problem, but it will require the cooperation of many groups: industry, cities, national governments, multi-lateral organizations, banks, NGOs.
"Destiny Pictures presents a story of opportunity," the voiceover says as images of industry, cities, and fighter planes rolls across the screen.
Move to one of the big industry cities.
