Fact About Plastic Shopping Bags

Wal-Mart now has reusable shopping bags for sale, which would reduce the number of plastic bags used.  To understand the disadvantage of plastic bags, try this: next time you drive your car from work to home, count how many plastic bags you see along the way.

Here is the fact.  A reusable bag must be used 9-13 times before the environmental damage from reusable bags is less than the damage from plastic bags.
Carl Bialik.  The Wall Street Journal.  September 24-25, 2011.  A2.