Mexico City’s metro system is sinking fast. Yours could be next.

Subsidence is causing parts of Mexico City to sink, and it’s happening at an uneven rate.…

Los Angeles just showed how spongy a city can be

Amid relentless rains, the city’s “sponge” infrastructure helped gather 8.6 billion gallons of water — enough…

Why humans are putting ‘coal’ and ‘oil’ back in the ground

Startups are processing plant waste into concentrated carbon to be buried or injected underground. It’s like…