Tesco stores across the country will go dark tonight as the lights have been dimmed for an hour.
The supermarket with shops in Birmingham and the Black Country turns off unnecessary lights in the shops between 8:30 p.m. and 9:30 p.m.
It is about raising awareness of how the use of energy can affect the environment.
The idea is part of Earth Hour, a worldwide movement organized by the World Wide Fund for Nature (WWF).
Held every year, it encourages individuals, communities and businesses to turn off unnecessary electric lights for an hour as a symbol of commitment to the planet.
The supermarket tweeted, “Tonight we’re taking part in #EarthHour to raise awareness of the environmental and climate impacts of energy use. Join us, @WWF and many others around the world, to turn off your lights by 8: 30-21: 30 tonight? “
Some customers questioned the idea.
One said, “If you think it safe to dim the lights for an hour, why are they on fire the rest of the time?”
Another added: “No, it will be dark”.
Another wrote: “Although I think we should all waste less energy, doesn’t turning the lights off at 8:30 a.m. and turning them back on at 9:30 a.m. only lead to an increase in demand on the national grid?”
But others thought it was a great idea.
Earth Hour was first launched in 2007 in Sydney, Australia.