Describe the externality that arises from plastic bags. Draw a graph to illustrate how plastic bags create

Question:

Describe the externality that arises from plastic bags. Draw a graph to illustrate how plastic bags create deadweight loss.
Thin plastic shopping bags aren’t biodegradable. Americans use about 110 billion bags a year. In 2007, San Francisco required large retailers to offer only compostable or reusable bags. In all, 28 U.S. cities have proposed laws restricting the use of plastic bags.