Pyramids, towers to turn out lights

NEW YORK, March 27 (UPI) -- The Empire State Building, the Eiffel Tower and Egypt's Pyramids of Giza are among the landmarks that will go dark Saturday night for Earth Hour.

The World Wildlife Fund has designated 8.30 p.m. March 28 as Earth Hour, urging everyone to turn off lights as a statement about the need for effective action on climate change. The action is aimed at urging an agreement on a global deal on climate change at a U.N. climate conference in December, WWF said in a release.

The St. Louis Gateway Arch and the Golden Gate Bridge are among the other major U.S. structures that will go dark Saturday night.

WWF said 2000 towns and cities in 84 countries are expected to participate in the annual event started two years ago in Australia.