It is argued that landfills and oceans are contaminated by plastic shopping bags, therefor, it should be banned. While there are some drawbacks of banning plastic bags, I completely agree with the idea that these bags should be banned. There are a number of reasons why I believe that plastic bags should be illegal to use. One possible reason is that most of the pollution is caused by plastic wastes which is increasingly not only harming the wildlife but also our diverse ecosystems. Sea turtles, for instance, often do mistake of eating jellyfish as plastic in ocean, leading them serious injuries or even death. Another reason is that banning plastic bags from shopping malls encourage consumers to become more ecofriendly by using reusable bags. For example, if supermarkets or shopping malls provide paper bags or tree bags instead of plastic bags, that will make consumers aware of environment, which would in turn lead them becoming good citizens. Therefore, we should be adopted with usi...