Google's Rocky Road to Carbon Removal: Tech Giants Invest Millions in "Enhanced Rock Weathering"
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Google's Rocky Road to Carbon Removal: Tech Giants Invest Millions in "Enhanced Rock Weathering"
In a bid to offset their carbon footprint, Google and other tech giants are turning to an unconventional climate solution: rocks. These companies are investing millions in a startup called Terradot, which uses a process called "enhanced rock weathering" (ERW) to capture carbon dioxide from the atmosphere. This method involves crushing rocks and spreading them across farmland, accelerating a natural process that traps CO2. While hailed as a promising approach, ERW faces challenges in scalability, measurement, and its role within a broader climate action strategy. The Rise of Rock-Based Carbon Removal: Tech Giants Leading the Charge: Google, H&M Group, Salesforce, and others have collectively pledged $27 million to Terradot through Frontier, a carbon removal initiative. Google has also made a separate, larger investment in the company. How ERW Works: Natural Process: Rainfall naturally weathers rocks, releasing minerals that react with CO2 in the atmosphere. Accelerated Weather…
