A rendering of the Equatic's carbon dioxide removal plant currently under construction in Singapore.
Mandatory Credit:	Equatic via CNN Newsource

A rendering of the Equatic's carbon dioxide removal plant currently under construction in Singapore.
Mandatory Credit: Equatic via CNN Newsource

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Can this ocean-based carbon plant help save the world? Some scientists are raising red flags

On a slice of the ocean front in west Singapore, a startup is building a plant to turn carbon dioxide from air and seawater into the same material as seashells, in a process that will also produce “green” hydrogen — a much-hyped clean fuel.