It’s impossible to forget the fact that we’re in the midst of a climate change crisis at the moment. Which is why Earth Hour 2017 is an extremely relevant observance that all of us should consider taking part in. On Saturday March 25th at 8:30 p.m. local time, all the major landmarks across the world are shutting off their lights and going dark for a full hour in order to raise awareness about climate change. The Eiffel Tower in Paris, the Empire State Building in New York City, the Sydney Opera House, the Pyramids of Egypt — they’re all participating in this incredible moment of solidarity.

More than 170 countries and territories are joining in for Earth Hour, and this will be the 11th year in a row that this event has taken place. We can all contribute to this hour by turning off all the lights in our own home and using the hashtag #ChangeClimateChange all day to raise awareness about the state of our planet.

Debbie Levin, president of the Environmental Media Association, spoke to Teen Vogue about Earth Day and encouraged everyone to get involved, because we always need more people to help fight climate change.

Our world is in more danger than ever before, and the generations that come after us may not have access to enough natural resources if we keep destroying our planet. That’s why Earth Hour is so crucial — it’s a chance for everyone across the globe to come together and speak up about climate change.

There’s no better time to show your appreciation for Mother Earth than this Saturday. Flick off your lights and let your voice be heard!