The hoppy pilsner from Singapore, where freshwater is scarce, is part of an effort to promote recycling solutions. The hoppy pilsner from Singapore, where freshwater is scarce, is part of an effort to promote recycling solutions. Beer, United Nations Framework Convention on Climate Change, Global Warming, Recycling of Waste Materials, Sewers and Sewage, Conservation of Resources, Water, Singapore, Baku (Azerbaijan) NYT > Science