San Francisco has become the first US city to vote for a ban on plastic shopping bags in supermarkets. The statistics behind this are incredible:
Roughly the number of plastic shopping bags distributed in San Francisco each year.
2 to 3 cents
Amount each bag costs markets, compared with anywhere from 5 to 10 cents for a biodegradable bag.
4 trillion to 5 trillion
Number of nondegradable plastic bags used worldwide annually.
Amount of oil needed to produce 100 million nondegradable plastic bags.