Istanbul to switch off lights for Earth Hour .hurriyet2008-detailbox-newslink { font-family: Arial, Helvetica, sans-serif; font-size:13px; font-weight:bold; text-decoration:none; color:#000000;} .hurriyet2008-detailbox-newslink:hover { font-family: Arial, Helvetica, sans-serif; font-size:13px; font-weight:bold; text-decoration:underline; color:#990000;} ISTANBUL - Several buildings in Istanbul will turn off their nighttime lights for 60 minutes on March 28 as part of "Earth Hour," an international campaign to raise awareness about climate change, the New York Times reported.

The World Wildlife Fund, or WWF, which is organizing the event, says more than 1,000 cities around the globe have committed to participate this year, up from 370 last year. The Earth Hour will start in Fiji and then roll around the globe, time zone by time zone, throughout the night.

New York City’s nighttime skyline will look a bit barren when the Empire State Building, the Chrysler Building and several other landmark structures temporarily turn off their lights for the event. This will be the second Earth Hour participated in by the Empire State Building, which Melanie Maasch, director of brand development and public relations, called a "green building."

"By turning off our world-famous, iconic tower lights for Earth Hour, we’re helping to support and raise awareness for the WWF’s ongoing efforts to fight climate change," Maasch said. Besides Istanbul and New York City, other slated participants include Cape Town, Chicago, Copenhagen, Dubai, Hong Kong, Las Vegas, Lisbon, London, Los Angeles, Manila, Mexico City, Moscow, Nashville, Oslo, Rome, San Francisco, Singapore, Sydney, Toronto and Warsaw.