.-.-.- (aka Fullstop) asks: "Cosmos Magazine is reporting that the rate of carbon dioxide emissions has more than doubled since the 1990's. Several researchers fear increased levels may be unstoppable. Australia's national science agency, CSIRO flatly states that current carbon reduction efforts are just not working. Add to this heady mix the fact that Toyota is pushing for a carbon tax and Australia, and the UK, are currently considering one, and a trend begins to emerge. If current reduction methods are not working what will? The United States currently employs a voluntary carbon reduction scheme based on market trading, with very limited corporate participation. Is a carbon tax a good way to stabilize emissions in the face of heretofore failed efforts at stabilization?"