China will use more coal than the rest of the world put together, while India will overtake the United States as the world's second-largest consumer and become the biggest global importer, the Paris-based IEA forecast in its annual Medium-Term Coal Market Report, released on Tuesday.

"Coal's share of the global energy mix continues to grow each year, and if no changes are made to current policies, coal will catch oil within a decade,' IEA Executive Director Maria van der Hoeven said in a statement.