Cabot Canada has been making carbon black, a powdery chemical used mainly in reinforcing rubber, in Sarnia, Ont., for 72 years.It takes a lot of energy — in the form of burning natural gas — and that's meant the company
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Cabot Canada has been making carbon black, a powdery chemical used mainly in reinforcing rubber, in Sarnia, Ont., for 72 years.It takes a lot of energy — in the form of burning natural gas — and that's meant the company