> The only negative impact of plastic bags is that people litter. Of course this does happen. However, even if people were meticulous about putting their used

> The only negative impact of plastic bags is that people litter. Of course this does happen. However, even if people were meticulous about putting their used plastic bags in trash receptacles, there are still _lots_ of ways for plastic bags to make their way into the environment: trash cans get overturned, trash bags sitting on the curb waiting to be picked up are torn open by animals, etc.