Recycled cardboard boxes are ready for transport outside a Walmart store in Duarte, Calif. Tuesday, May 28, 2013. Wal-Mart Stores Inc. pleaded guilty on Tuesday to charges the company d

 

              Recycled cardboard boxes are ready for transport outside a Walmart store in Duarte, Calif. Tuesday, May 28, 2013. Wal-Mart Stores Inc. pleaded guilty on Tuesday to charges the company d
Recycled cardboard boxes are ready for transport outside a Walmart store in Duarte, Calif. Tuesday, May 28, 2013. Wal-Mart Stores Inc. pleaded guilty on Tuesday to charges the company dumped hazardous waste in Calif. Wal-Mart entered the plea in federal court in San Francisco to misdemeanor counts of negligently dumping pollutants from Walmart stores into sanitation drains across California, a company spokeswoman said. (AP Photo/Damian Dovarganes)