While the impact analysis says here will be a net environmental benefit from eliminating single use plastics, including the reduction of 1.8 million megatonnes of greenhouse gases annually, it also says some substitutes will have a higher climate change impact, as well as negative effects on air and water quality. The government says, based on 2019 data, that 15.5 billion plastic grocery bags a year were being sold in Canada, 5.8 billion straws, 4.5 billion pieces of cutlery, three billion stir sticks, 805 million takeout containers and 183 million six-pack rings. The six categories of single use plastics subject to the ban account for an estimated 160,000 tonnes of plastic waste annually, just 5% of the overall amount of 3.3 million tonnes of plastic waste. Of that, 86% ends up in landfills, 4% is burned, a dismal 9% is recycled — so much for all those years of faithful blue box recycling — and about 1%, or 29,000 tonnes, is discharged into the environment as litter, with 2,500 tonnes ending up in oceans, lakes and rivers.