But there’s a big difference between polluting emissions, and greenhouse gas emissions. So far, CO2 hasn’t been considered anything but a harmless byproduct but it’s one of the main drivers of global warming. So unless there’s a combustion engine that does not produce that (maybe hydrogen-based?)…
And the car/petrol industry has systematically ignored these things for decades. It would have been possible to build more sustainable cars that consume less than half the fuel, decades ago. Or invest into alternatives (hydrogen, electricity etc.).
But there’s a big difference between polluting emissions, and greenhouse gas emissions. So far, CO2 hasn’t been considered anything but a harmless byproduct but it’s one of the main drivers of global warming. So unless there’s a combustion engine that does not produce that (maybe hydrogen-based?)…
And the car/petrol industry has systematically ignored these things for decades. It would have been possible to build more sustainable cars that consume less than half the fuel, decades ago. Or invest into alternatives (hydrogen, electricity etc.).
And now they’re whining.
I mostly agree with you but “so far” is pretty generous considering that the effects of CO2 as a greenhouse gas has been known for over a century.
Talking about car emission regulations here, and in that context “so far” is correct.