Mail: Tough new targets on tackling climate change will cost Britain £500 a year per household, push up utility bills and force 1.7million Britons into fuel poverty by 2020. The grim predictions came from independent Government advisers yesterday as they set targets for slashing greenhouse gas emissions. The influential panel led by millionaire business guru Adair Turner wants the UK to cut levels by up to 42 per cent within 12 years. A report from the Committee on Climate …