Earth Hour began Saturday to go around the world, starting with Oceania, where millions of lights are turned off and the most important monuments have been left in the dark against climate change.

The first country is Samoa, and behind him, the other nations of the world in Asia, Europe, Africa and America have been happening to be in the dark until the end of the day on March 23 in the Cook Islands.

The initiative, promoted by the World Wildlife Fund WWF, has come to Sydney, where he was born, at 20.30 local time (09.30 GMT) today with a blackout in buildings as well known as the Opera House and the Harbour Bridge .

Skyscrapers, public buildings, shopping centers, markets, shops, parks and other places of the capital have acceded to this proposal this year is expected to attract more than seven thousand cities in 152 countries around the world.

Official institutions and landmarks of the major Indian cities also joined planetary blackout, but in this country the call had modest results.

In New Delhi, monumental buildings like the Red Fort and Humayun’s Tomb, went dark at 20.30 local time (15.30 GMT), and in Bombay the call was little more luster, receiving the support of Bollywood stars.

For the fifth consecutive year, China’s big cities have joined turning off the lights of the Great Wall, the colonial buildings of downtown Shanghai and other monuments.

Also Nest Stadium and the bridge over the Yangtze River in Wuhan (central Mexico), darkened between 20.30 and 21.30 local time to the surprise of many tourists.

This year, acts coincide with increased public awareness of the need to improve the environmental situation after Beijing were registered record levels of air pollution. In the capital of Japan macroiluminada has been off for an hour Tokyo Tower, while the foot

All these acts were repeated in many towns and cities in Latin America, and in Buenos Aires and Santiago de Chile, where the Moneda Palace turned off their lights even half an hour before the appointed time.