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Documentary: Smart Cities - Building for the Cities of Tomorrow

More people than ever are living in cities, while only 10 percent of the population of the world did so at the start of the 20th century. The number has grown to 50 percent today.

By the end of this century, humans will be a predominantly urban species. As our cities grow, so do the challenges. Space is becoming scarce and social tensions, traffic, noise, and pollution are all on the rise.

At the same time, cities offer many opportunities such as the more efficient use of resources, energy, and infrastructure.

After remaining a relatively small specialty field for decades, sustainable building today hold the technical key for the future.
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