Marks & Spencer will attempt to go one better than Tesco by beating its environmental targets by a decade.
Last week, the Big 4 grocer revealed “ambitious” plans to reach net zero carbon emissions across its “value chain” by 2050.
Marks & Spencer has now said it will do the same thing by 2040, adding that “this is not a far-away promise”.
Chief executive Steve Rowe has written to the supermarket’s suppliers to rally them behind its eco-drive.
“We need to transform how we make, move and sell our products to customers and fundamentally change the future shape of our business,” he said.
Rowe admitted this “won’t be easy”, but said businesses “must act now to rapidly cut our footprint”.
Marks & Spencer, which claims to be the first major retailer to go carbon neutral, will also slash its 2017 carbon footprint by a third by 2025.