Wal-Mart doing some good.

Wal-mart, a massive supermarket chain with over 2 million employees that rivals some countries, is going to double the percentage of local produce. The "local" refers to any produce grown in the state, this is quite general, but it would help smaller economies and farmers. The NY Times article by Stephanie Clifford says:

Wal-Mart Stores announced a program on Thursday that focuses on sustainable agriculture among its suppliers as it tries to reduce its overall environmental impact.
The program is intended to put more locally grown food in Wal-Mart stores in the United States, invest in training and infrastructure for small and medium-size farmers, particularly in emerging markets, and begin to measure how efficiently large suppliers grow and get their produce into stores.

  This program would help local economies and reduce pollution from transportation. This new plan, which should be enacted by 2015, will be a significant step towards a greener America.