This is outstanding. If only Wal-Mart would team up with Home Depot or Lowes (make it a competition) to double or triple the size of this.
I think Wal-Mart sees the future revenue potential in the various carbon trading markets that will be sprouting up. Not only do they get free electricity, they'll be able to trade huge amounts of carbon credits. Nothing wrong with making a buck while still doing the right thing.
Now if they could only invest in those giant kite sails for the container ships from China, that would make a serious dent in the carbon footprint of Wal-Mart products.
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