I'm restarting my series on solutions to global warming, both on how to phase out fossil fuels and the best means to sequester carbon, because I consider the topic a critical one. The carbon lobby has mostly (not entirely) given up disputing that global warming is occurring. They know that they won't be able to confuse the public on its human-caused nature much longer. But a final stalling tactic is open to deniers -- to pretend that nothing can be done, or at lea ...