On Saturday 26 March, the world will be plunged into darkness, as Earth Hour once again takes over the planet in an annual attempt to raise awareness of global warming, the environment and what we can all do to help reduce our own carbon footprint.
At 8:30pm local time, everyone around the world is asked to switch off their lights, and as many electrical items as possible, to show the impact that a little effort can have on the resources of the planet.
Some 4,600 major cities across the globe will be taking part, seeing such iconic attractions as the Eiffel Tower and Sydney Opera House switching off their lights and becoming a beacon of hope for the environment.
This year, plans are being put in place to try to go beyond the hour with governments being asked to consider switching to low power LED lighting and the encouragement of more environmentally friendly and sustainable transport policies.
We can all do our bit to support Earth Hour, organise a candle party, a barbeque, or just switch of the technological shackles that bind us and spend a little time talking, or imagining the world without the noise of industry and without the glow of artificial light. Look up to the stars and enjoy them without the pollution of our cityscapes.
There is so much we can do, but even the smallest of effort can make a huge difference. So, wherever you are in the world, at 8:30pm your time on Saturday, switch off and enjoy the beauty of nature and give back a little attention to the earth.