Fingerprint of human-caused global warming was likely detectable 140 years ago, far earlier than previously thought | CNN
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The human fingerprint on global warming was likely evident in Earth’s atmosphere far earlier than previously thought—even before the invention of modern cars, a new study says.
  • Ben Matthews@sopuli.xyzEnglish
    12·
    13 days ago

    Well, it’s a kind of stretched thought experiment, to imagine they had precise satellite-like temperature measurements in those days. But if you really want to ask, when did humans first have a discernible influence on the climate, it surely goes back much earlier than that - due to deforestation and associated changes in albedo (as well as CO2), also desertification in some regions (north africa?). I don’t see albedo or land-use change in this paper, only fossil emissions.