Dublin based start-up, Silicon Kingdom Holdings, in partnership with Arizona State University, to build carbon capture 'farms' capable of removing up to 4 million metric tons of carbon from the atmosphere per year, at a cost of less than $100 dollars per ton.

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Dublin based start-up, Silicon Kingdom Holdings, in partnership with Arizona State University, to build carbon capture 'farms' capable of removing up to 4 million metric tons of carbon from the atmosphere per year, at a cost of less than $100 dollars per ton.