by Lucia Walton, World Radio Switzerland, Switzerland - With the United Nations advising the world on how to save resources they’ve also been trying to lead by example in their own backyard in Geneva. In a bid to save energy and money, two ecological programmes are running side by side. One uses water from Lake Geneva to cool the UN’s many offices and the other relies on a flock of sheep to graze some of the thousands of square metres of grassland at the site.