An illuminated globe is placed in front of the Brandenburger Gate in Berlin ahead of the the global climate change awareness campaign "Earth Hour" on March 28, 2015. Millions are expected to take part around the world in the annual event organised by environment conservation group WWF, with hundreds of well-known sights including the Eiffel Tower in Paris and the Seattle Space Needle set to plunge into darkness for an hour to highlight the plight of the planet. AFP PHOTO / JOHN MACDOUGALL