A Stunning Statistic About China and Concrete | Bill Gates - 0 views
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Smil cites studies that say replacing mud floors with concrete floors in the world’s poorest homes would improve sanitation and cut the incidence of parasitic diseases by nearly 80 percent. Paving streets, he says, “boosts land and rental values, school enrollment, and overall economic activity and also improves access to credit.”
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. In the coming decades, the United States and China alone will need to spend trillions of dollars replacing and disposing of concrete laid down in the past generation. There are also environmental problems, including all the carbon dioxide that’s released during production.
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I am optimistic that innovation can help reduce the downsides of concrete. For example, mini-sensors embedded inside it could alert engineers when it needs to be replaced.