PARIS — In a world first, engineers from Britain's University of Cambridge have shown that cement can be recycled without the same steep cost to the environment as making it from scratch. Cambridge engineers have developed a potential solution for one of our biggest decarbonisation challenges: concrete.Concrete produces three times as much carbon as aviation, but low-emission concrete could be transformative for the transition to net zero.
'Bright hope'The cement industry alone accounts for nearly eight percent of human-caused CO2 emissions—more than any country except China and the United States.Some 14 billion cubic meters of concrete are cast every year, according to industry figures, and more still will be needed as economies and cities grow in future.