Climate Home: In just over a month, at a bleak airport in the north-eastern suburbs of Paris, the future of the world may be decided at a UN climate change conference. Nearly 200 countries are working on a plan to collectively start weaning themselves off fossil fuels: lifeblood of the global economy, cause of global warming. If they succeed then by 2100 the burning of oil, coal and gas at scale will likely be history. Countries will rely on wind, solar, nuclear for energy, along with technologies as yet unheard...