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« Comment prendre pour « réaliste » un projet de modernisation qui aurait « oublié » depuis deux siècles de prévoir les réactions du globe terraqué aux actions humaines ?
Comment accepter que soient « objectives » des théories économiques incapables d’intégrer dans leurs calculs la rareté de ressources dont elles avaient pourtant pour but de prévoir l’épuisement ?
Comment parler d’ »efficacité » à propos de systèmes techniques qui n’ont pas su intégrer dans leurs plans de quoi durer plus de quelques décennies ?
Comment appeler « rationaliste » un idéal de civilisation coupable d’une erreur de prévision si magistrale qu’elle interdit à des parents de céder un monde habité à leurs enfants ? » Bruno Latour
filtre:
Phil N. Bierwirth
2026
There is mounting experimental evidence that lifetime exposure to increasing atmospheric CO2 levels can negatively impact the normal physiology of organisms. Directly assessing this in humans is very difficult. We analysed serum bicarbonate (HCO3−), calcium (Ca) and phosphorus (P) from 1999 to 2020 as indirect proxies for atmospheric CO2 exposure. Over this period, average bicarbonate levels in this population show an increasing trend which parallels rising atmospheric CO2 concentrations. Both. If these trends continue, blood bicarbonate values could be at the limit of the accepted healthy range in half a century, and Ca and P will be at the limit of their healthy ranges by the end of this century. This has the potential to cause a range of adverse health effects.
2025
Anthropogenic activities are increasing the amount of carbon dioxide (CO2) in the atmosphere. There is mounting experimental evidence that lifetime exposure to these increasing atmospheric CO2 levels can negatively impact the normal physiology of organisms. However, directly assessing this in humans is very difficult. We analysed serum bicarbonate (HCO3−), calcium (Ca) and phosphorus (P) levels from the U.S. National Health and Nutrition Examination Survey (NHANES) from 1999 to 2020 as indirect proxies for atmospheric CO2 exposure. Over this period, average bicarbonate levels in this population show an increasing trend which parallels rising atmospheric CO2 concentrations. Both Ca and Phave decreased steadily over the same period. If these trends continue, blood bicarbonate values could be at the limit of the accepted healthy range in half a century, and Ca and P will be at the limit of their healthy ranges by the end of this century. Studies indicate that, after this time, elevated atmospheric carbon dioxide
