I found some very interesting articles that could see a future in which there is still ice in the poles. All we need is a lot of titanium dioxide, a few balloons and rockets, technology, and somebody responsible to control it. One solution to the melting ice cap: Refreeze it. It wouldn't even cost that much We could refreeze Arctic, says study; but should we? Sunscreen in the Sky? Reflective Particles May Combat Warming
Generally, I think the environmental movement should embrace top-down, technology-based solutions to climate change, given that grass-roots efforts to influence attitudes and behaviour have failed. Specifically, I'm not remotely qualified to comment.
Here's an recent update: New Light-Reflecting Particles in the Stratosphere Could Cool Earth and Fix the Ozone Layer
