Canada’s Crawford Lake could mark the beginning of the Anthropocene
The proposed geologic epoch denotes when humans began profoundly changing the planet
![A photo of Crawford Lake with trees surrounding it.](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2023/07/071123_MP_geology-new-chapter_feat.jpg?fit=1030%2C580&ssl=1)
The mud of Canada’s Crawford Lake (shown) holds an extremely precise record of humans’ influence on Earth.
Sarah Roberts