Speaking to reporters near Montreal, Trudeau said a list of items that will be banned was not yet prepared, but the government is planning to research which plastics should be eliminated.
"We need to cover all of Canada with this decision and that's why the federal government is moving forward on a science-based approach to establishing which harmful single-use plastics we will be eliminating as of 2021," the prime minister said, according to CBC News.
A source told the news outlet that the list might include plastic plates, cotton swabs, drink stirrers, and polystyrene cups.
Trudeau added that the government will make it the responsibility of businesses to manage what plastics they create and sell.
The prime minister also said it's "tough trying to explain" to his children why "dead whales [are] washing up on beaches around the world, their stomachs jam-packed with plastic bags," Reuters reported.
“As parents, we’re at a point when we take our kids to the beach and we have to search out a patch of sand that isn’t littered with straws, Styrofoam or bottles. That’s a problem, one that we have to do something about," Trudeau said.
The decision by Canada comes after European Union lawmakers voted earlier this year to also ban single-use plastics by 2021.