The retailer claims its has started using what it says is the UK's first biodegradable polythene packaging for some of the millions of products it sells.
The new bags ensure they break down harmlessly in landfills dumps. The plastic will rot into water, gas and humus within 15 years, it says, compared with hundreds of years for conventional plastic bags.
The company is looking to increase the amount of products it uses the packaging this year and promises after six months it will make the technology available for other companies to use.
"Our new bags are designed to make it easier for our customers to dispose of polythene bags in a more environmentally sustainable way, helping to reduce our overall impact as a business," said Mark Gallen, packaging design and production manager at John Lewis.
This is a great step forward for large companies reducing their environmental impact. Hopefully more retailers can continue to work on further reducing their environmental impact.