We can suck CO2 from the air and store it in the ocean as baking soda
https://www.newscientist.com/article/2363620-we-can-suck-co2-from-the-air-and-store-it-in-the-ocean-as-baking-soda/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home