How an antacid for the ocean could cool the Earth

The ocean is the greatest carbon sink on the planet. (Image: Steve Allen, Depositphotos)

Sat, 11 Jan 2025

By Sarah RazaThe world’s oceans stow vast amounts of carbon dioxide. Now, a growing group of scientists and companies say they’ve found a way to increase that storage capacity by tweaking ocean water chemistry.The technique, known as ocean alkalinity enhancement, usually involves dissolving acid-neutralising rocks in the ocean, allowing it to absorb more carbon dioxide.Researchers have been exploring this technology for the past five years, but over the past two months, at least a couple of startups have begun operation along the At...

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