Asian nations from the Philippines to India have delivered huge boost to the WWF Earth Hour rallying cry for decisive action on climate change from world leaders this year.
As the lights out for one hour from 8.30 pm local time "vote for earth" event headed towards the Middle East, Europe and Africa it appeared participations was soaring into the hundreds of millions..
Earlier, South Koreaâ€™s leading global citizen, UN Secretary-General Ban Ki-moon had described WWFâ€™s Earth Hour as "the largest demonstration of public concern about climate change ever attempted."
"Earth Hour is a way for the citizens of the world to send a clear message they want action on climate change," he said, looking forward to the UN conference on climate change in Copenhagen in December which is charged with coming up with a replacement to the expiring â€“ and inadequate â€“ Kyoto Protocol.
"People will be telling their representatives to seal a deal in Copenhagen," he said. "We need an ambitious agreement. An agreement that is fair and effective. An agreement based on sound science."