New York City’s Empire State Building will go dark Saturday night as well as other lights all over the world to mark the Earth Hour.

Saturday from 8:30 to 9:30 p.m., people all over the world will turn off the lights for one hour to show their concern about the process of global warning which is currently the biggest threat the man kind is facing, but hasn’t really done much about it.

More than 2,800 cities all over the world vowed to turn off the lights to mark the symbolic event that marks Earth Hour. Only 250 of those cities are from the United States, a really low number considering the fact that our country has the highest level of energy consumption in the word.  The data was provided by World Wildlife Fund, an international conservation organization that boasts 1.2 million national members and close to 5 million globally, USA Today reported.

"It's all about the symbolism," said Dan Forman, a spokesman for World Wildlife Fund. "We fully recognize that one hour does not put a dent in the climate crisis."

Although there are several critics of Earth Hour such as the Competitive Enterprise Institute (CEI), a Washington, D.C., think tank that thinks global warming isn’t something to worry about, numerous companies have taken the event seriously. Coca-Cola is one of them. The corporation said it will turn off its big signs all over the world.