BBC: The government has committed the UK to cut greenhouse gas emissions by 80% by the middle of this century. Climate Change and Energy Secretary Ed Miliband said the current 60% target would be replaced by a higher goal. He told MPs the government would not “row back” on green issues in the light of the current economic crisis. He also warned the big energy companies they face a crackdown on “unfair” pricing policies in his first statement as head of the new …