The government of China together with the UN Environment Programme (UNEP) released a report on China's green investments on 26 November 2013 titled "A Study of Renewable Energy, Environmental Industry and Cement Sectors." The report finds that, despite rapid advancement towards a green economy, significant environmental and social challenges must be surmounted if China is to achieve its sustainable development goals. According to the report, China successfully decreased its energy intensity per unit of Gross Domestic Product (GDP) between 2006-2010. The report also highlights China's strong policy framework supporting a national transition to a green economy and significant challenges facing China.