Major firms should be asked to sign up to voluntary "responsibility deals" to cut waste, the Conservatives say. The party says existing EU rules are not wide-ranging enough and are "propping up our throwaway culture". The former Tory MP and Asda boss Archie Norman has been asked to look for ways of working with firms on a "fundamental rethink" of tackling waste. The government has given supermarkets a year to slash the use of plastic bags, threatening legislation if they do not. The steering group on waste is part of a wider drive by the Conservatives to persuade businesses they have an important role to play in creating a better society - on issues from obesity to climate change.