kim marotta is director of sustainability for millercoors. what's happening and where is it happening? >>it is happening all across the united states but we are really focused in the west at our breweries in california, fort worth, and colorado. >>so breweries but also in the field where things like hops are grown. >>absolutelywhere our barley is grown. agriculture in montana, wyoming, idaho, and colorado. >>so what are you doing? >>we are working hand in hand with our barley farmers and producing precision irrigation. in our breweries we are becoming more efficientmaking more beer using less water. >>how about some examples in the brewery of what you are doing? >>in our breweries we are doing everything from changing out water sprays. we have a drying loop that moves bottles down the line and we remove water from that. >>water used to be used to clean the bottles out, now you are using air? >>ionic air rinsers. we are reducing the amount of time we clean kettles.we are looking at every step of the brewing process. >>what has been the result.