yellowish smog to hang over Los Angeles, causing or worsening all sorts of nasty breathing illnesses in huge numbers of the people. It was mostly, though by no means wholly, caused by dirty car exhausts. So Congress passed the Clean Air Act which meant that by the mid-Seventies cars would need catalytic converters. GM, Ford and Chrysler went
FUTURE PROOF
Aug 09, 2023
2 minutes
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