The reason behind Earth Hour is a call for global action on climate change.
Beginning in Sydney in 2007, Earth hour has spread to more than 180 countries, with tens of Millions of people joining in.
In Auckland, the sky tower turned off its lights for an hour.
The city of lights, Paris, also turned off the Eiffel Tower's nightly twinkle to mark Earth hour Paris, mayor Anne dimmed the lights on the city's most famous monument for an hour.
In Auckland, the sky tower turned off its lights for an hour.
The city of lights, Paris, also turned off the Eiffel Tower's nightly twinkle to mark Earth hour Paris, mayor Anne dimmed the lights on the city's most famous monument for an hour.
