BBC: A coal summit has opened in Warsaw, down the road from UN climate talks. Poland stands accused of thumbing its nose at efforts to cut emissions by encouraging use of the most carbon-intense fuel. The BBC's Matt McGrath examined whether the government's goal of a cleaner future for coal was anything more than a pipe dream.
In the dense, foggy haze that sits over the ancient city of Krakow, you can barely see the outline of Wavel's famous castle.
Legend has it that a fire breathing dragon lives...