Plastic bags are a problem for a variety of reasons. These include:
As a single use disposable form of packaging, plastic bags are typically used for a short period of time but take hundreds of years to break down in landfill (National Plastic Bags Working Group, Report, page 5).
In the marine environment, Planet Ark estimates that plastic bags kill at least 100,000 birds, whales, seals and turtles every year.
Plastic bags are an extremely visible and unsightly component of litter items collected. Their persistence means that the number of bags in the environment will increase over time. Currently, Local and State Governments around Australia spend more than $200 million per year picking up litter.
The production of plastic bags accounts for some 37,000 tonnes of plastic polymer that is derived from non-renewable resources. While plastic bags can be recycled, major supermarkets only collect small amounts through their recycling facilities for reprocessing.
Plastic bags are considered to be a 'free' commodity but the cost to households of $10 to $15 per year is added to the price of goods that they purchase.