Toronto Sun: British Columbia's carbon tax has been described by admirers as among the best in the world for fighting climate change.
Today I'm going to use it, including the most optimistic projections by its supporters, to show you why it is utterly meaningless in the absence of a truly global plan to combat greenhouse gas emissions.
The tax, introduced in 2008 at $10 per tonne of industrial carbon dioxide emissions, now $30, is portrayed by its supporters as helping to transform B.C. into a low-carbon...