Join Murrayfield Churches Together, in Edinburgh, for an evening service as they turn the lights out for Earth Hour.
Arrive at 8pm for tea, coffee and fair-trade baking before a reflective hour of hymns, prayers and films.
A retiring collection will be taken for the World Wildlife Fund.
At Saughtonhall United Reformed Church, 85-87 Saughtonhall Drive, Edinburgh EH12 5TR
Further information here.