The famous Ferris wheel on Santa Monica Pier will go dark tonight, joining iconic buildings and landmarks in Southern California and around the world in recognition of "Earth Hour," an annual exercise to raise awareness about climate change.

The Ferris wheel at Pacific Park will turn off its lights, except for the tire safety lights, for one hour starting at 8:30 p.m. It will join iconic landmarks around the world, including the Eiffel Tower, the Sydney Opera House in Australia and Big Ben in London.

Earth Hour was started in 2007 by the World Wildlife Fund as a symbolic lights-out event in Sydney, Australia. It takes place every year on the last Saturday in March and has followers in more than 190 countries and territories.

According to organizers, the hour is a “moment of unity that unites the world, highlights nature loss and the climate crisis, and inspires millions more to act and advocate for urgent change.”

As global monuments go dark, supporters of the movement around the world are urged to "symbolically go dark and 'give an hour to the Earth,' spending 60 minutes doing something, anything, positive for our planet," the people said. organizers.