The most startling and hopeful thinking on the world’s energy future consistently comes from Amory Lovins, a physicist based at the Rocky Mountain Institute in Colorado. His latest paper describes the potential to utterly transform the world’s energy economy, starting with vehicle technology. In fact, it details an SUV design that gets the equivalent of 100 miles to the gallon. In Amory’s view, a safer, cleaner, more prosperous, more efficient, climate-friendly hydrogen economy is not decades but years away, and each of the steps that can take us to it are profitable in the short term. A paper he wrote last year to debunk myths about hydrogen provides a more introductory exposition of similar themes.