Late year's climate change conference in Paris told us that the world is more determined than ever to tackle global warming. As one of the major greenhouse gas emitter, China doesn't need a reminder about its role and responsibility in this field.Latest official figures show that China's use of coal in 2015 continued to follow a downward trend which started in 2014. Meanwhile, the country reportedly invested a record 111 billion US dollars in the clean energy sector.That said, coal burning still accounts for more than 60% of China's energy consumption at the moment. In a country where coal has been heavily relied on, growing pains seem to be inevitable as its energy consumption undergoes a structural transformation.So, how should China manage its transformation towards a low-carbon economy? How can the country cooperate with the international community in tackling climate change? PIK speaks with Professor Li Junfeng, Director General of the National Center for Climate Change Strategy and International Cooperation, under China's National Development and Reform Commission.