We're still stockpiling reusable bags. Big grocers have adopted solutions, but experts have concerns

Canada's plastic bag ban has had an unintended consequence: a proliferation of reusable bags piling up in basements, closets and, eventually, landfills.

"They're everywhere," said environmental researcher Tony Walker. "We're drowning in them, and we shouldn't be."

To combat the problem, several of Canada's big grocers have introduced solutions. Last week, Walmart launched a free national recycling pilot program for the retailer's reusable blue bags. Competitors Sobeys and chains owned by Loblaw Companies Ltd. use recyclable paper bags for grocery delivery.

But some environmental experts argue that paper bags are also problematic and that the best solutions are those that help customers actually reuse their reusable bags.

"We just can't keep giving [them] out," said Walker, a professor at Dalhousie University's School for Resource and Environmental Studies in Halifax. "We're only meant to have a few of them, and we're meant to use them until they fall apart."

In late 2022, the federal government rolled out a ban on the manufacture, import and sale of several single-use plastics, including checkout bags. The regulations are being contested in court, but in the meantime, they remain in effect.

The regulations have made single-use shopping bags scarce in Canada, but they've also led to the proliferation of reusable bags, especially for grocery delivery.

"It just creates more waste, which is what we're trying to avoid in the first place," Walmart customer Udi Sela said in a CBC News interview in late 2022.

At the time, Sela, who lives in Maple, Ont., estimated his family had acquired about 300 reusable Walmart bags via grocery delivery.

"We can't return them, we can't do much with them."

Now, a little more than a year later, Walmart has launched a pilot project to address the problem.

It allows customers to pack up their unwanted reusable Walmart blue bags and ship them — at no charge — to a facility where they'll get a second life.

According to Walmart, bags in good condition will be laundered and donated to charity, primarily Food Banks Canada. Damaged bags will get recycled into other materials. Reusable bags typically can't go in blue bins because they're costly and difficult to recycle.

Customers must sign up for Walmart's program, and enrolment is limited.