Breaking news:  EDF (Environmental Defense Fund) approached corporate giant Wal-Mart about greening their supply chain.  The results could be healthier indoor environments for many of us, plus a better world overall.  Read about this massive change here.

I want to highlight that EDF approached Wal-Mart, not the other way around, so ignore the doubters in the article comments.  Now if we can just get them to do something about the environmental impact of their stores (reduce energy use, permeable paving, sustainable building practices, etc) ....