Diageo, the maker of Guinness, Smirnoff and Johnnie Walker, improved water use efficiency by 30 percent in 2015 against a 2007 baseline, according to its 2015 integrated annual report. Year-over-year water efficiency improved 10 percent. In water-stressed locations, the company has reduced water wasted by 33.4 percent. At Diageo’s breweries … Read more »