SHOPPERS in Scotland use a "staggering" 750 million disposable carrier bags a year and have increased their use over the past 12 months.

Environment Secretary Richard Lochhead said the figure – which equates to 12 bags a month per person –showed why action was needed to tackle the issue.

The Scottish Government has announced plans to bring in a new charging regime, with shoppers to be charged 5p for single-use bags from October next year.

The proceeds from this will go to charity, with good causes expected to receive up to £5 million a year thanks to the scheme.

New figures from the organisation WRAP, which aims to reduce waste, showed supermarket shoppers in Scotland used 750 million thin gauge carrier bags in 2012 – up from 740 million the previous year. Across the UK, 8.1 billion single-use bags were used in 2012.

Mr Lochhead said: "Discarded carrier bags highlight our throwaway society. It's clear that we need decisive action and that's exactly what our new measures will do.

"By introducing a modest charge we can help to cut the number of bags which are often seen littering our streets, beaches and countryside."

Lang Banks, director of environmental campaign group WWF Scotland, said the figures on the number of plastic bags used were "pretty shocking".