Crawford Lake shows humans started a new chapter in geologic time, scientists say

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Crawford Lake shows humans started a new chapter in geologic time, scientists say
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A humble lake in a Canadian suburb may soon become the symbolic starting point for a radical new chapter in Earth’s official history: the Anthropocene, or the age of humans.

— the epoch that encompasses the last 11,700 years — is marked by molecules of hydrogen trapped in ancient Greenlandic ice.

Other researchers worry that giving the Anthropocene a strict geologic definition may have ripple effects far beyond the hidebound halls of academia.“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.”

“No one that I know that’s been critical of the Anthropocene wants to deny the effects of humans on the Earth system,” Bauer said. He is among a group of scientists who havethat the concept be defined as geologic “event,” rather than an epoch — a more flexible term that could encompass all the nuanced ways people have reshaped and been shaped by nature over thousands of years.

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