Morrisons grocery chain has become the first UK retailer to raise its freezer temperatures to -15 °C, a commitment made in line with the Move to -15 °C Coalition, which is an industry effort to increase frozen food storage and transportation temperature standards for the sake of sustainability.

The Move to -15°C Coalition advocates for the current industry standard for frozen food storage to be raised from -18 °C to -15 °C. According to the coalition, -18 °C is an archaic standard—set more than 100 years ago—and recent science shows that an increase of just 3 °C in freezer temperatures across the supply chain could greatly assuage the industry’s environmental impact by cutting carbon emissions, saving energy, and lowering costs.  

Additionally, the coalition claims that widespread global adoption of a change of just 3 °C across the supply chain would mean potential savings equivalent to 8.6 percent of the UK's energy consumption, and reduce carbon emissions at a level that is equivalent to taking 3.8 million cars off the road.