英语听力精选进阶版 15246（在线收听）

InBiz: Coal Comfort: 16 Aug 12

Thu, 16 Aug 12

Coal is the most abundant fossil fuel and the dirtiest. With insatiable demand from growing emerging economies, it's here to stay. Peter Day asks if coal can ever go green. Producer: Arlene Gregorius Editor: Stephen Chilcott