[On Point Radio, WBUR] Today in Montreal, Canada, ten thousand environmentalists and officials have gathered to look beyond the years and framework of the Kyoto Protocol, at the future of the world’s increasingly urgent struggle with global warming. Thousands of miles to the south, one clue may lie in plans for the sunny Mojave Desert. After years in the outback of energy production, solar energy is making a comeback — or more accurately, a breakthrough…. Hear about the resurgence of solar energy. Guests: Peter Spotts, science correspondent for The Christian Science Monitor; Tim Gnatek, wrote about Stirling initiative for Technology Review magazine; Bruce Osborn, chief executive of Stirling Energy Systems; Frank Laird, professor at the Graduate School of International Studies at the University of Denver, author of “Solar Energy, Technology Policy and Institutional Values;” and Daniel Kamman, Director of the Renewable and Appropriate Energy Laboratory at The University of California. To listen to the hour-long radio show, use the following link.