This week, from September 19-25, marks the 20th anniversary of the Pollution Prevention Act of 1990. The old way of doing things was to let companies pollute, and then pay a fortune to try to clean it up. This act states that it is a national policy of the United States to prevent pollution at the source whenever feasible. To honor this anniversary, the EPA is urging the public to recommit to the ideal of preventing pollution in their day-to-day lives.