
Tourists visit the the Mendenhall Glacier, in Alaska. Geologists are considering whether humans’ impact on the planet has been significant enough to merit the naming of a new epoch. CREDIT PHOTOGRAPH BY MATTHEW RYAN WILLIAMS/THE NEW YORK TIMES/REDUX
Thanks to, Michelle Nijhuis in general, for her science writing and environmental journalism–making these topics simultaneously fun and fascinating, if also sometimes depressing; and to the New Yorker for making space for this note in which she briefly explains the naming of the epoch we live in:
The duties of the Anthropocene Working Group—a thirty-nine-member branch of a subcommission of a commission of the International Union of Geological Sciences—are both tedious and heady. As the group’s chairman, Jan Zalasiewicz, whom Elizabeth Kolbert wrote about, in 2013, says wryly, “People do not understand the very slow geological time scale on which we work.” Yet the A.W.G.’s forthcoming recommendations may bring an end to the only epoch that any of us have ever known—the Holocene, which began after the last ice age, about twelve thousand years ago, and lasts to this day. The group’s members are pondering whether the human imprint on this planet is large and clear enough to warrant the christening of a new epoch, one named for us: the Anthropocene. If it is, they and their fellow-geologists must decide when the old epoch ends and the new begins.
In a paper published today in the journal Nature, Continue reading

