New Delhi: For an hour on March 28, Delhi will join in on giving the Earth a rest. Delhi is part of a 371 city initiative which will see cities switching off their lights completely for an hour at 8.30 pm IST.

The initiative, called Earth Hour, is by WWF International and seeks to raise awareness on the pressures on the planet today and the looming spectre of climate change as a result of high energy consumption.

While there have been similar 'switching off' initiatives in the past, this is set to be the largest and most far reaching initiative to raise awareness on pressures on the planet, with some of the greatest, and most energy intensive cities taking part.

This includes 37 national capitals and other great metropolitan hubs like London, Paris, Beijing, Rome, Moscow, Los Angeles, Rio de Janeiro, Hong Kong, Dubai, Singapore, Athens, Buenos Aires, Toronto, Sydney, Mexico City, Istanbul, Copenhagen, Manila, Las Vegas, Brussels, Cape Town and Helsinki besides New Delhi and Mumbai.