Today, Saturday, March 25, 2017, marks the tenth anniversary of Earth Hour, an hour-long event coordinated by WWF and other volunteer organizations to shine a light on climate action. During the event, millions of people, businesses, and landmarks from around the globe will join together and switch off their lights to show their support for the future of the planet.

Last year, millions of people across 178 countries united for Earth Hour. With climate change at the height of concern in 2017, the support for Earth Hour is expected to succeed that of last years. Some of the famous landmarks going dark for the event include the Empire State Building, the Golden Gate Bridge, the Colosseum in Rome, the Space Needle, the Pyramids of Egypt, Tokyo Tower, the Eiffel Tower, and the Sydney Opera House.

Some of the famous landmarks going dark for the event include the Empire State Building, the Golden Gate Bridge, the Colosseum in Rome, the Space Needle, the Pyramids of Egypt, Tokyo Tower, the Eiffel Tower, and the Sydney Opera House.

The event will start at 8:30 pm GMT and participants are encouraged to turn off non-essential lights in their homes for one hour. But of course, you can always leave them off for longer if you really wish to make a statement.

"Turning off lights for an hour does not affect emissions of greenhouse gasses, but is a symbolic gesture," Aiguo Dai, a professor in the department of atmospheric and environmental sciences at the University at Albany told USA Today.

Interested in getting your friends and family involved in Earth Hour?

You can choose to temporarily change your Facebook profile picture to include an Earth Hour frame or even choose to make a donation. The WWF also provides participants with an Earth Hour starter kit which includes a downloadable banner that you can use to promote the event on your website, social media pages, or in your local area.

Earth Hour Tips from WWF

  • "Turn up the dark!" The WWF suggests holding an unplugged concert and streaming it live on your Facebook page or another channel. If you do share your performance, don't forget to use #EarthHourLive.
  • Candlelight Session Workouts. Choose your favorite workout and "burn some calories along with those candles." Or use this time to meditate and think of ways you can take action in the fight against climate change. The possibilities are endless.
  • Commit to Reducing Your Carbon Footprint. If you haven't already, Earth Hour is a great day to make a resolution to reduce your carbon footprint. Make simple changes to your everyday life such as turning the lights off when you leave your home, switching to e-billing, using reusable products, buying local, or recycling.

How will you be spending Earth Hour? Share your event details and tips in the comments section below.