Toronto has become the first major city in Canada to ban plastic shopping bags in a surprise city council vote that the mayor denounced as “ludicrous.”

Mayor Rob Ford, who predicted the ban will face a legal challenge, had asked city council to scrap Toronto’s contentious five-cent levy for plastic shopping bags. Council supported the mayor and voted to scrap the tax – but then also agreed with a last-minute motion to ban bags outright, beginning Jan. 1.

“It is not a smart move by council to ban plastic bags,” Mr. Ford said after vote. “I don’t think it is going to hold up in court. You can’t tell people they can’t give out plastic bags. To me it’s ludicrous.”

Marion Axmith, a spokeswoman for the Canadian Plastics Industry Association, warned that the move would kill jobs in Toronto and said the industry would consider all its options.

On the other side of the debate, Emily Alfred from the Toronto Environmental Alliance said the ban is a sign the city is moving in the right direction. “It sends a clear signal Toronto wants to be an environmental leader,” she said.

Retailers were taken by surprise by the decision, with some warning the move will cost them more – partly to produce paper bags and also because of short-term lost sales if shoppers leave empty-handed without wanting to buy a reusable bag for their purchases...

The ban, which was supported by a vote of 27-17, calls for the city “to prohibit all City of Toronto retail stores from providing customers with single-use plastic carryout (shopping) bags, including those advertised as compostable, biodegradable, photodegradable or similar.”