Climate disruption from the burning of fossil fuels is already responsible for major changes to our environment and our economy. The amount of carbon dioxide in the Earth’s atmosphere is now higher than it has been in millions of years, and if we carry on at current rates of emissions, the future impacts here and around the world will be devastating. The science is clear: if we are to avoid the worst of these impacts, coal and unconventional fuels such as tar sands and fracked gas need to stay in the ground.