Narrower definition excludes chemicals in pharmaceuticals and pesticides that are generally defined as PFAS

:biden-troll:

I promise you if I'm elected president, you're going to see the single most important thing that changes America, we're gonna cure cancer…

Sorry Mack, did I say cure? I meant “create new and untreatable forms of”

  • Tapirs10 [undecided,she/her]
    ·
    3 years ago

    I mean with CO2 directly isn't really a problem to human health. The climate change from it, and sulfur gases and particulates from burning fuel definitely are. But if we get to the point where co2 content in the air is dangerous then we are in end of all life on earth scenario, not just collapse of civilization scenario.

    • BigLadKarlLiebknecht [he/him, comrade/them]
      ·
      3 years ago

      My understanding is that there isn’t that much science around the effects of long term elevated CO2 exposure in humans (acidosis, etc) - most research has been around spaceflight and submarines, so studies that look at periods of 1-2 years. I have seen a couple of papers hypothesising the effects of chronic low-level elevation, but they’re of dubious provenance and are so doomer I’m trying to not take them seriously for the sake of my own sanity.

      doomer shit

      At the present rate of increase of carbon dioxide in the atmosphere, the toxic limit will be attained in AD 2050 based on extrapolation of the measured results from Mauna Loa. The effects of carbon dioxide are a reduction in the pH value of blood serum leading to acidosis. The minimum effects of acidosis are restlessness and mild hypertension. As the degree of acidosis increases, somnolence and confusion follow. One of the effects of these changes is a reduced desire to indulge in physical activity. Other metabolic effects of acidosis have been reviewed and shown to be extensive. Embryonic or foetal abnormalities are also possible as the increase in atmospheric carbon dioxide affects maternal metabolisms in succeeding generations.

      …

      It is likely that when the concentration of carbon dioxide in the atmosphere reaches 426 ppm in less than two generations from the present date, the health of at least some sections of the world population will deteriorate, including those of the developed nations. It is also obvious that if the extremes of conditions described above come to pass, then the biosphere and humankind are seriously threatened.

      Note that this 2050 prediction is outdated - we’re already at 420ppm today. :doomer: