Canadian lake identified as the \u0027golden\u002Dspike\u0027, a spot in the geologic record that preserved the transformation humans have wrought
Crawford Lake was selected from among 12 golden spike candidates around the globe, including the ice of Antarctica, two remote coral reefs, a mountaintop peat bog and a polluted California bay. Each contained evidence for the same simultaneous surge in human pollution around 1950 – particularly a sudden spike in radioactive plutonium from nuclear weapons testing, which will serve as the primary marker of the Anthropocene.
“It’s not just about climate change. It’s not just biodiversity loss. It’s not just the sediments that humans are moving. It’s all of this together,” said Jürgen Renn, director of the Max Planck Institute for the History of Science in Berlin, which supported the working group’s research. “We have to address them as a phenomenon that is multiply connected. And we have to make an effort to understand it and adapt our societies accordingly.
“The stories we tell aren’t just scientifically neutral stories,” said Andrew Bauer, an anthropologist at Stanford University who studies human interactions with the environment. “There are potential political ramifications.” “The concept of an unprecedented geological transformation having occurred in the last 70 years is a big statement,” acknowledged Simon Turner, an environmental scientist at University College London and secretary of the Anthropocene Working Group.
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