Greenhouse gases are wreaking havoc on the planet. What if they could be used for good?

When Gaurav Sant thinks about how the planet might dodge catastrophic climate change, at the front of his mind are not solar panels or wind turbines or electric cars.

It’s cement.

Sant spiritedly talks of how cement production is exhausting the Earth, accounting for an absurd share of the greenhouse gases that industry spews into the air. The director of a team of civil and environmental engineering innovators at UCLA, he poses an intriguing question:

What if all those cement-factory emissions blowing into the atmosphere were instead bottled up and transformed into a useful product?

More cement, in fact. But a kind that barely has a carbon footprint at all.

“We need transformative solutions” to global warming, Sant says. “And this approach is fairly simple to implement.”

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