Archived from the original (PDF) on 2007-01-31. Retrieved 2007-01-25. ↑ "USGS World Energy Assessment Team". Retrieved 2007-01-18. ↑ Proven energy reserves, BP Statistical Review of World Energy 2010 ↑ The Middle Landfill ↑ China building more power plants ↑ COAL: Scrubbing its future ↑ Pollution From Chinese Coal Casts a Global Shadow accessed 14 October 2007 ↑ IEA (2006), p.