Movements for climate and ecological survival have largely eschewed talk of taking CO2 out of the sky. For good reason. We don't know if it will work and it shifts the focus away from ceasing the damage. However, if we have already crossed climate tipping points, it's probably a good idea to begin looking at our options: the uncertain, the dubious, and the overtly evil. Here, we examine emerging GHG removal potentials, the underlying worldviews that allow and prohibit different sectors of society from discussing them, and the value systems evident in how ecological issues are framed.
