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Frontier buys $31M worth of antacids for the ocean | TechCrunch

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Frontier, the carbon removal clearinghouse founded by Google, Stripe, Shopify, and others, announced today that it is buying 115,211 metric tons of carbon removal credits from geoengineering startup Planetary in a deal worth $31.3 million. Where most Frontier deals to date have bought carbon from startups specializing in direct air capture, enhanced weathering, or bioenergy with carbon capture, the organization’s agreement with Planetary is its first to do so by enhancing ocean alkalinity. The deal effectively prices each metric ton of carbon at $270, though Planetary says it has a plan to eventually remove carbon for less than $100 per metric ton. At full tilt, ocean alkalinity enhancement could remove over 1 billion metric tons of carbon dioxide annually. For decades, the oceans have been dampening the effects of climate change by absorbing carbon dioxide from the atmosphere. That has slowed the pace of global warming, but it also endangers a host of marine organisms, including coral

Frontier buys $31M worth of antacids for the ocean | TechCrunch Image Credits: www.ginomaccanti.com / Getty Images Climate Frontier buys $31M worth of antacids for the ocean Tim De Chant 5:00 AM PDT · August 26, 2025 Frontier, the carbon removal clearinghouse founded by Google, Stripe, Shopify, and others, announced today that it is buying 115,211 metric tons of carbon removal credits from geoengineering startup Planetary in a deal worth $31.3 million. Where most Frontier deals to date have bought carbon from startups specializing in direct air capture , enhanced weathering , or bioenergy with

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