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Climate warning

Evidence in Canada lake indicates start of new Anthropocene epoch

Scientists say human activity has so fundamentally altered the geology, atmosphere and biology of the earth that it has entered a new geologic epoch known as the Anthropocene. Sediment deposited at the bottom of lakes can provide scientists with a geological record of changing environmental conditions. While the team of scientists collected core samples from 11 other sites, Lake Crawford’s exceptional depth allowed sediment to float downward relatively undisturbed, creating layers that can capture distinct environmental markers. Scientists were therefore able to document a “golden spike” among its layers of sediment: a dramatic and, at least in geological terms, sudden change in the conditions of the earth. Part of that “spike” was evidenced by the presence of plutonium in the lake sediment. Plutonium rarely occurs naturally, leading scientists to conclude it came from nuclear testing in the 1950s. Waters, the geologist, said it was a “clear marker” for the shift to the Anthropocene, the age of humans. He and the other members of the AWG have proposed naming the start of the new epoch between 1950 and 1954. https://www.aljazeera.com/news/2023/7/11/evidence-in-canada-lake-indicates-start-of-new-anthropocene-epoch

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  • winnie nguru

    48 w

    How did we get here? this is sad

    2
    • Rukia Ahmed Abdi

      48 w

      This is so alarming.

      5
      • walter lungayi

        48 w

        This is so devastating

        13
        • Munene Mugambi

          48 w

          Barely after fighting forest fires, there's this. No break for Canada

          9
          • rosebellendiritu

            49 w

            Such an alarm!!!

            15
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