• gandalf_der_13te@feddit.org
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    4 days ago

    i think this is about toxic gases emissions vs CO2 emissions. while CO2 emissions have probably gone up somewhat (my guesstimate is +30% since 1970), the toxic gas emissions have almost completely gone to zero. there was a whole lot more toxic gases around in the 20th century industry and machinery, you had to cough constantly, we just don’t remember it because it’s comparatively clean now.

    • Jiral@lemmy.world
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      4 days ago

      Toxic emissions have absolutely not gone down to zero. High respiration activities next to a highway still get you a solid dose of toxic stuff. Yes, it would be much worse with 1970s vehicles but it would be much better if the majority of vehicles sold today would not be able to use the regulatory SUV/truck loophole to be able to pollute more. This loophole is not just about CO2.

      I witnessed myself what a huge impact on air quality it had on a street to see heavy two lane traffic gone and that had nothing to do with CO2 and it was even without that loophole you have in the US.

        • Jiral@lemmy.world
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          3 days ago

          No but I have a nose and lungs and I can smell the difference next to roads with jammed heavy traffic, it ain’t the CO2 and I am not simply imagining pollutants.

          “almost completely zero toxic emissions” is a fairy tale. Respiratory issues remain to be a bigger issue in cities for a reason.

          Toxic emissions from road traffic remain as major health problem in the US: https://www.pnas.org/doi/10.1073/pnas.2107402118 (not the newest data but you are not claiming that in the 10 years since, everything has changed ro the beeter,are you?), even if progress has been made. I can’t wait to see those dirty combudtion engines (no matter how much you purify the exhaust) vanish from the streets. In Europe we are on the way at least even if China will ve likely faster

          • gandalf_der_13te@feddit.org
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            3 days ago

            well sounds to me like deaths from toxic emissions sank by roughly 60% from 2008 to 2017. it’s not “almost down to zero” in that time frame but a lot has happened between 1960 and 2008 too.

            • Jiral@lemmy.world
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              3 days ago

              It is a clear improvement but 40% of a huge number is still a huge number, not even remotely “almost down to zero”.