On the New Belgium Brewing company website is the following image:

I recommend visiting their website and reading a bit about their process. What particularly interests me about New Belgium Brewing is that brewing 400,000 barrels of beer a year requires a massive amount of energy and is a water intensive process. To claim a green footprint in this business, and at their scale, you need to be doing alot of things right which they appear to be doing (e.g., goal of being entirely wind-powered, good waste water treatment practices, energy efficient, high job satisfaction, etc...). New Belgium Brewing is a good case study for operating a green business.