Can we transform one of Earth's greatest climate villains into a hero?

Nature · Published 1 October 2026 Swipe more like this →

In short: Cement is the second most consumed material on our planet, but its production is a massive source of pollution. This video explores a new way to repurpose industrial waste to create a sustainable alternative.

Cement production accounts for approximately eight percent of global carbon pollution. Clean tech innovator Ryan Gilliam presents a method to use existing infrastructure to transform waste from the cement-making process back into limestone. This approach aims to create a competitive, eco-friendly product capable of delivering gigaton-scale climate solutions.

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