The burning of coal represents the biggest single obstacle to meeting the Paris Agreement goal of limiting warming to 1.5ºC. UN Secretary-General Antonio Guterres calls it a “deadly addiction”, and COP26 president Alok Sharma has urged leaders to “consign coal to history”. There has been some progress – the global pipeline of new coal-fired power plants has shrunk almost 70 percent since 2015. Renewable-energy is expanding sharply. But the dramatic rally in prices in recent weeks shows ever more clearly that it’s nowhere near enough. Humanity remains deeply dependent on coal. Is the world near to kicking its dirtiest habit ?

