The Co-op has agreed a three-year deal with the RSPB to help bring down carbon emissions.
The Manchester-headquartered group will work on a project covering the restoration and long-term management of peatland.
The initial focus will be on areas of RSPB-owned upland peatland in Scotland and Wales, which are equivalent in size to around 400 football pitches, bringing vital peatland back into good condition to reduce carbon loss and help tackle the climate and environment crisis.