The Vegas Paradox: In sin city, excess and efficiency walk hand in hand. In the driest large city in the west, known for its excesses that attract about 40 million visitors a year, the city is leading the way in sustainability efforts, including energy efficiency, water conservation, and a variety of other programs to enhance the sustainability of the region. For a look at both the good and the bad, as well as a nice photo gallery of Las Vegas, read the full article published by the High Country News.