From climate crisis to species loss and pollution, humans have etched their impact on Earth with such strength since the middle of the 20th century that a special team of scientists says a new geologic epoch began then — the Anthropocene
Scientists are recommending the start of a new geological epoch defined by how humans have impacted the Earth should be marked at the pristine Crawford Lake outside Toronto in Canada. / Photo: AP
While there is evidence worldwide that captures the impact of burning fossil fuels, detonating nuclear weapons and dumping fertilisers and plastics on land and in waterways, the scientists are proposing a small but deep lake outside of Toronto, Canada — Crawford Lake — to place a historical marker. The group aims to determine a specific start date of the Anthropocene by measuring plutonium levels at the bottom of Crawford Lake.
That includes everything from nuclear fallout to species-threatening pollution to steadily rising temperatures. The Anthropocene shows the power — and hubris — of humankind, several scientists said."The hubris is in imagining that we are in control," said former US White House science adviser John Holdren, who was not part of the working group of scientists and disagrees with its proposed start date, wanting one much earlier.
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Scientists say a new epoch marked by humans’ impact on Earth — the Anthropocene — began in 1950sHumans have etched their impact on the Earth with such strength and permanence since the middle of the 20th century that a special team of scientists says a new geologic epoch began then.
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Canadian lake sediments reveal start of Earth's Anthropocene age, scientists saySediment deposited at Crawford Lake, a small but deep body of water in Canada's Ontario province, provides unmistakable evidence that Earth entered a new human-driven geological chapter - the Anthropocene epoch - some seven decades ago, a team of scientists said on Tuesday.
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This Canadian lake should mark the start of the Anthropocene, scientists sayCrawford Lake in Canada marks the beginning of the Anthropocene, a new geologic epoch defined by human impacts on Earth. A group of scientists said Tuesday the best evidence for humanity’s overwhelming impact on the planet could be found here.
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Canada’s Crawford Lake could mark the beginning of the AnthropoceneThe mud of a Canadian lake holds an extremely precise record of humans’ influence on Earth. But the Anthropocene isn’t an official geologic epoch yet.
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Canadian lake selected as site to mark the start of the AnthropoceneGeologists hoping to declare a new epoch dominated by humanity’s influence on Earth have chosen Crawford Lake in Canada as the location where the start of the Anthropocene is defined
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