Some scientists believe human activity and technology have pushed us into a new geological epoch called the Anthropocene. "We feel strongly that Crawford Lake has all the right stuff," said Francine McCarthy, the team's leader and an earth sciences professor at Brock University who has been studying the lake since the 1980s. Scientists from Brock, Carleton and McMaster universities take a two-metre-long sample of sediment from the bottom of Crawford Lake in Milton, Ont. Think of the meteor in the Late Cretaceous period that brought the dinosaurs — and that geological epoch — to an end. Each line seen in the sediment seen here represents one year.

Source: CBC News August 18, 2018 07:52 UTC