A compulsory 5p charge on plastic bags in Wales has been hailed a success since the scheme was introduced in 2011.
Welsh Labour Assembly Member John Griffiths said there was "no reason why the charge wouldn't work just as well in other parts of the UK".
Since Wales introduced the 5p plastic bag charge:
- The use of plastic bags reduced from 270 million to 70 million;
- Hundreds of thousands of dollars have been raised for environmental groups from the bag charge proceeds; and
- Cardiff University found 82 per cent of shoppers brought their own bags, up from 61 per cent before 2011.