On Saturday, thousands of cities, towns, homes, hotels and landmarks around the world will turn off their lights for one hour, at 8:30 p.m. local time, as part of Earth Hour to make a statement about climate change.

Participating sites include the Kremlin and Red Square in Russia, the Sydney Opera House, the Brandenburg Gate, the Empire State Building, the Eiffel Tower, the Little Mermaid statue in Copenhagen, Niagara Falls and several airports, including Los Angeles International Airport (LAX), where the 100-foot-tall LAX Gateway pylons that illuminate the main entrance will light solid green one hour before Earth Hour and be turned off from 8:30 to 9:30 p.m.

Denver International Airport will also be participating in Earth Hour on Saturday by turning off the illuminated DIA sign along Pena Boulevard, the illuminated sign marking the Jeppesen Terminal and the lights on the base of the “Mustang” statue.

Other airports around the world planning to turn the lights off for Earth Hour include Changi Airport in Singapore and the Samoa Airport

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