By Vijay Vaitheeswaran, Global energy & climate innovation editor, The Economist
IF YOU WANT a breathtaking display of the grandeur of nature's past, visit Zion. This national park in south-western Utah, with its striking red canyons and craggy peaks, is one of America's most visited outdoor places. If you want a glimpse of the power of harnessing nature in the future, you need to travel north to a more desolate spot. Just outside the town of Milford you will find a blustery plain ringed by ridges where an energy revolution is quietly taking place.
