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Estimated growth of the scrap markets for the dominant load-bearing alloy groups responsible for the highest CO2 emissions, namely, (a) steel137 and (b) aluminum alloys.7 The data have been taken from the International Steel Institute and the International Aluminum Institute, respectively. MT, million tonnes. The figure is reproduced in modified form with permission from (a) ref (137) (Copyright 2019, Elsevier) and (b) ref (7) (Copyright 2022, Elsevier).
