Incidentally, maybe a big home run from a fairly obscure hitter on my blog today: using a catalyst to reduce CO2 and convert it to long-chain carbon molecules (not sure from their presentation, but it looks like sugars and benzenes). They're using electrolysis to provide the energy to drive the reaction, but I don't necessarily see that as a huge problem. If this is for real, it could be simply enormous.
Like others I appreciate the indepth posts. I don't mind them being irregular (that's what RSS readers are for) but more would be nice. I also appreciate it when you find the time to leave comments on my blog.