However, Nina warned thicker plastic “bags for life” are still often being used and British shops need to tackle this issue too.
She said: “The UK uses more than a billion and a half heavy-duty bags for life a year, so to make sure the gains made on carrier bags aren’t lost we also need to phase out bags for life.”
The Co-op has already announced it will get rid of its plastic bags for life, making them unavailable in stores for customers to buy.
The company will also scrap its single-use carrier bags and replace them with compostable bags, which will also cost 10p.