China's massive investment in new energy industries in recent years has made it Asia's green economy giant, Ajay Chhibber, Assistant Secretary-General of the United Nations, said Thursday.

China has become the world's second largest market for green power, and it also has taken the lead in electric vehicle, wind power and solar power, Ajay Chhibber told a forum discussing international city development in Beijing.

Data from the Global Wind Energy Council showed China had the largest wind turbine fleet in Asia by 2008, with a total power-generating capacity of 12.21 million kilowatts.

Meanwhile, Ajay said China has demonstrated leadership in coping with global climate change, saving energy, cutting emissions, and developing a green economy.

The government announced in November 2009 that it would reduce its "carbon intensity," or the amount of carbon dioxide emissions per unit of gross domestic product (GDP) by 40 to 45 percent by 2020 compared with 2005 levels.