Warmist claim: "more than one billion people turned off their lights in celebration of Earth Hour."

Leo Burnett Chicago Kicks Off the Next Generation of Earth Hour, Activates Global Social Media Campaign Reaching 128 Countries | NEWS.GNOM.ES

“Our goal for Earth Hour 2011 is to reach new, unprecedented heights of social engagement to fuel the single largest act of global participation the world has ever seen,” said Carey Isom, Senior Vice President of Digital Strategy at Arc Worldwide/Leo Burnett Worldwide. “As a HumanKind communications company dedicated to putting a brand’s purpose at the center of everything we do, we are honored to bring awareness and activation to this very special cause.”
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Earth Hour is the largest mass participation event in human history and was organized by WWF—an election between Earth and global warming, organized the largest mass participation event in human history.Created by Leo Burnett Sydney in 2007 and carried on by Leo Burnett Chicago, Earth Hour was the first time people of all nationalities, race, ace, gender and religion were able to vote on the future of our planet as one global democracy. Now, just five years later, more than one billion people turned off their lights in celebration of Earth Hour.