Ocean Carbon Solutions Must Contend with Environmental and Growth Issues
By harnessing the seas’ natural ability to absorb heat and carbon, an expanding business is attempting to manufacture a solution to global warming. The idea that dumping rocks, fertilizers, crop waste, or seaweed in the water may trap climate-warming carbon dioxide for millennia or more is being promoted by dozens of businesses and academic institutions. Over the last four years, there have been nearly 50 field trials, with start-ups raising hundreds of millions of dollars in initial funding. The majority of businesses searching for climate solutions offshore are attempting to change or decrease the amount of carbon dioxide that is trapped in the ocean.
To track the flow, Planetary Technologies used magnesium oxide and a red dye in an experiment that was started in Halifax Harbour, Nova Scotia. It turns carbon dioxide from a gas into stable molecules that won’t interact with the atmosphere for millions of years when it dissolves in seawater. Will Burt, chief ocean scientist at PlanetaryTecnologies, says, “You put an alkaline or a basic mineral in the ocean and that mineral is basically an antacid.” It neutralizes stomach acid in the same manner that an antacid does.
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