US Energy Secretary Rick Perry have gotten electricity and fossil fuels all mixed up.
Analysis – Rick Perry seems to be confusing fossil fuels with electricity
Goodbye to six decades of coal power in Beijing
As Beijing closes its last coal power plant Feng Hao looks back at the history of the Chinese capital’s coal dependency.
Lessons from Kenya about what’s holding back solar technology in Africa
Why has solar failed to take off in Africa?
A greener life, a greener world 