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I'll keep in mind points 1 and 3. As for cars, how do we know that's true. There was Dieselgate, but from what I've heard they only got them because of whistle
by than3 4y ago
I'll keep in mind points 1 and 3.
As for cars, how do we know that's true. There was Dieselgate, but from what I've heard they only got them because of whistleblowers.
Many VOCs which these laws are designed to reduce are odorless. The ones are visible are larger particle size and generally less of an issue from an environmental perspective from most accounts.
- dgroshev 4y agoYou can literally smell it in the air, older cars don't have cats to burn everything uncombusted down to CO2+H2O. You can smell it with a modern car for the first few minutes while cat is heating up. You can see it in car shapes, there's a reason why every modern car looks the same — aerodynamics and pedestrian safety make car shapes converge. You can see it in ubiquitous cans of AdBlue on petrol stations, which was not a thing just two decades ago (and still aren't in many developing countries). Finally, you can see it numbers: https://www.asm-autos.co.uk/workspace/images/yearly-co2-emissions.png https://www.asm-autos.co.uk/workspace/images/yearly-co2-emis... There is no fundamental reason why all those changes had to happen, it wasn't the market driving them. It was the regulation.