We don't need any energy technology breakthrough to solve the climate-change problem. At least, that's the Tthesis posited by The Economist in a debate sponsored by everyone's favorite multinational oil company, British Petroleum Beyond Petroleum. The ayes are having it so far. Joseph Romm from the Center for American Progress takes the pro, Peter Meisen of the Global Energy Network Institute takes the con, and Earth2Tech's Katie Fehrenbacher argues the corollary for conservation through increased efficiency.