The council is urging folk to switch off their lights for an hour on Saturday as part of the international Earth Hour campaign organised by the World Wide Fund for Nature (WWF).
Such was the response among individuals, businesses and groups last year that Shetland was named community “lights out” winner. The aim is to reduce carbon emissions and combat climate change by consuming less energy.
A spokesman said: “There are lots of ways to spend that hour – last year the West Sandwick Public Hall in Yell organised a candlelit games night. If the weather’s fine, go for a walk; or if it’s a clear night, try stargazing. You could have a meal by candlelight, enjoy a film or a favourite book.
“Not only does Earth Hour ask people to switch off their lights for just an hour, but go beyond that and think about how they can reduce their carbon footprint. At a time when electricity bills and the cost of living are rising, reducing carbon can help you save money by making some simple changes.”
Dr Richard Dixon, director of WWF Scotland, said: “WWF’s Earth Hour has become a global phenomenon, and so it’s heartening to see communities such as Shetland taking part. It’s a simple way for people to show their concern about the effects climate change is having on wildlife and people around the world. We hope lots of individuals and groups feel inspired to take part on 31st March.”