Most fossil fuels must stay in the ground if the world is to keep global warming below very dangerous levels. This has been widely acknowledged, including by the Intergovernmental Panel on Climate Change, International Energy Agency, Bank of England, US President Obama, French President Hollande. We need to 'keep it in the ground'. 

Coal is not just the dirtiest fossil fuel,  it’s the most abundant. There are around 1,000 billion tonnes of coal in world reserves. Coal also causes enormous damage to human health and local ecosystems. In the power sector it can now be replaced with renewable energy.