www.independent.co.uk/news/uk/home-news/four-hundred-million-more-plastic-bags-handed-out-in-supermarkets-last-year-7917787.html
The article seems to put the increase down to shoppers buying less more often. It also says more shoppers are using public transport, and are less likely to bring reusable bags. Campaigners are urging for a tax on bags to turn the tide back.
I love free plastic carriers as I use them more than once, and also as bin liners. This surely is recycling, and no worse than buying and using bin liners?