Coal is mined in more than 100 countries and on all continents except for Antartica. For the Geo Quiz we are looking for the top three coal mining countries in the world. China, US and India are the top three coal producers in the world and the answers to the Geo Quiz. China accounts for nearly half of global coal production and is also the world's largest user of coal. Its coal use has helped it become the biggest annual emitter of greenhouse gas pollution, but a new study published this week shows that the coal smoke is also helping to cool the atmosphere.