The report...ranks the UK's six largest power companies according to their performance on greenhouse gas emissions, energy efficiency and renewable energy. Of the six big power companies...Scottish Power is doing the most and EDF Energy the least to respond to the challenge of climate change...Matthew Davis, Climate Change Campaign Director at WWF-UK said "However, this report shows that overall the power sector is doing little beyond trying to meet government targets"...[also refers to E.ON, Scottish and Southern Energy, RWE, Centrica]