The social impact of oil, gas and mining companies also came up at the MC Saskatchewan delegate sessions during a workshop on the province's uranium mining industry presented by Chris Buhler of Osier (Sask.) Mennonite Church. Saskatchewan is the world's largest producer of uranium-about one-third of global uranium production comes from there.Buhler described how Mennonite churches in the Warman, Sask., area and many in that community fought in the late 1970s and early 1980s to prevent a uranium refinery from being built there. They were successful, but the refinery was then built by Cameco in Blind River, Ont. "That creates a moral dilemma for us," he said. "We fight these things and then find that they go somewhere else."Buhler outlined the many links between the nuclear power industry and the production of nuclear weapons, something that makes nuclear power more attractive to government spending than other alternative energy forms that aren't so easily turned into weapons. It isn't just nuclear bombs that are the issue, either. The U.S. is using some of the 635,000 tonnes of depleted uranium it has stockpiled to make bullets and shells for use in Iraq. This is a controversial use of the metal under international law, as rates of cancer and birth defects have gone up in Iraq in areas where depleted uranium was used.