Being green is becoming part of the key messaging toolkit for companies as diverse as Wal-mart and Apple. I’m all in favour of anything that helps, but just how green is green in corporate America? Green World Media has put together a scorecard based on 20 top indicators.

In this landmark report, Joel Makower and the editors of GreenBiz.com answer the question: How are U.S. businesses doing in their quest to be greener and more environmentally responsible? It introduces the GreenBiz Index, a set of 20 indicators of progress, tracking the resource use, emissions, and business practices of U.S. companies: carbon, materials, energy, and toxics intensity, clean-tech investments, e-waste recovery, paper use, employee commuting, and more. full report at StateofGreenBusiness.com

Also check this article in Wired.com on the GreenBiz index.