Guardian: If you want to see market irrationality in action, look no further than current stock market valuations for the world's major oil, gas and coal companies.
At a time when governments are supposedly preparing for a global climate change deal that will cut carbon emissions, energy multinationals are investing in carbon assets like there's no tomorrow.
Put bluntly, either we're heading for a climate catastrophe, or the carbon asset bubble will go the way of sub-prime mortgage stock.
Yesterday's...