This combination of pictures created shows the Petronas towers before (top) and after the lights were switched off (bottom) during the Earth Hour campaign in Kuala Lumpur on March 19. Millions of people from 178 countries and territories were expected to take part in WWF's Earth Hour this year, with monuments and buildings such as the Eiffel Tower, Taipei 101 and the Empire State Building plunging into darkness for 60 minutes from 8:30pm local time.     Photo : AFP