Our modern world is literally built on concrete. This cheap, strong material is everywhere--skyscrapers, bridges, highways, tunnels--and it's hard to imagine what our cities would look like without it. But concrete has a weak spot, and climate change could make it even worse.
Our modern world is literally built on concrete. This cheap, strong material is everywhere--skyscrapers, bridges, highways, tunnels--and it's hard to imagine what our cities would look like without it. But concrete has a weak spot, and climate change could make it even worse.
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