The brightly illuminated white arches that are the mark of the Pacific Science Center and the towering pillars of the Space Needle will go dark this Saturday as Seattle recognizes Earth Hour, an international effort to unplug for one hour on a Saturday night to raise awareness and to urge political powers worldwide to take meaningful action on climate change.
Earth Hour begins at 8:30 p.m. on Saturday, March 29.
Earth Hour leaders encourage families across the globe to join the effort and turn off all non-essential lights between 8:30 and 9:30 p.m. as a symbol of their commitment to the planet.

New in 2014, Earth Hour Blue offers a way to engage people beyond the lights out event. Visit www.earthhourblue.crowdonomic.com to learn about and donate to some of the biggest environmental campaigns around the world.
Earth Hour started in 2007 in Sydney, Australia when 2.2 million individuals and more than 2,000 businesses turned their lights off for one hour in a stand against climate change. Last year, Earth Hour took place in more than 7,000 cities and towns and in 154 countries and territories across all seven continents. Iconic buildings and landmarks were joined by individuals and families who switched off their lights at the same time in defense of the planet.
Need more inspiration? Check out this year’s official Earth Hour video: