Plastic fossils: Evidence of human impact on world forever etched in rocks

From microplastics to the Great Pacific Garbage Patch, the ubiquitous presence of plastic and its impact on humans has increasingly captured attention worldwide. In recent years, it has been seen making yet another mark on the world as well — in the form of “plastic rocks.” And now, one Toronto museum has started adding these so-called “plastiglomerates” to their geological collection, building a record of the Earth’s history etched in stone. Global’s Katherine Cheng has the details.