Egypt Earth Hour
A combination photo of a night view of the site of the ancient Giza Pyramids before and after switching off the lights for the Earth Hour, in Cairo, Egypt Saturday March 28, 2009. From an Antarctic research base to the Great Pyramids of Egypt and beyond, the world switched off the lights on Saturday for the second Earth Hour, dimming skyscrapers, city streets and some of the world's most recognizable monuments for 60 minutes to highlight the threat of climate change. (AP Photo/Nasser Nouri)
Copyright 2009 AP News
