EnvironmentAmerica.org: “Well-designed single-use plastic bag bans have successfully reduced plastic bag use and associated litter and pollution. Use the Single-use Plastic Bag Ban Waste Reduction Calculator to estimate the impact where you live. Single-use plastic bags pollute communities with litter, degrade in the environment and harm marine life. The good news is that states and cities with well-designed single-use plastic bag bans have successfully reduced plastic bag use and associated litter and pollution. Bans in five states and cities that cover more than 12 million people combined – New Jersey; Vermont; Philadelphia; Portland, Ore.; and Santa Barbara, Calif. – have cut single-use plastic bag consumption by about 6 billion bags per year. That’s enough bags to circle the earth 42 times.  Adopting a ban on single-use plastic bags that’s similar to those policies could be expected to eliminate roughly 300 single-use plastic bags per person per year, on average. Download our new report, “Plastic Bag Bans Work – Well-designed single-use plastic bag bans reduce waste and litter,” for more details on how bans on single-use plastic bags are reducing waste and litter around the country. Our Single-use Plastic Bag Ban Waste Reduction Calculator uses the number of bags saved by the typical bag ban to estimate the number of bags that would be eliminated in cities and states with similar bans. If you live in a place that already has a bag ban, estimate the impact a typical bag ban would have each year. If your city or state doesn’t have a ban, estimate the impact a typical bag ban could have…”