Earth Hour 2015

A week ago, on Saturday, March 28, iconic landmarks and skylines were plunged into darkness as people and businesses around the world participated in Earth Hour 2015, turning off their lights at 8:30 p.m. local time. Earth Hour was organized by the World Wildlife Fund in 2007 as a way to bring attention to energy consumption, sustainability, and climate-change issues. The images below (starting with photo number two) are interactive—click on each image to "turn off the lights."

Read more
Hints: View this page full screen. Skip to the next and previous photo by typing j/k or ←/→.

Most Recent

  • Sergione Infuso / Corbis via Getty

    Photos of the Week: Garbage Suit, Mesquite Heat, Bog Commander

    A fashion show in Burkina Faso, images from battlefields in Ukraine, the Witches and Wizards Convention in Brazil, a sandstorm in Iraq, electric-scooter racing in England, and much more

  • Caitlin Ochs / Reuters

    Water Levels in Lake Mead Reach Record Lows

    Images of Lake Mead, which has reached its lowest water levels since the 1930s

  • Jonathan Nackstrand / AFP / Getty

    Scenes From Svalbard

    Recent images of the landscapes and inhabitants of Svalbard, a Norwegian archipelago in the Arctic Ocean

  • Serhii Nuzhnenko / Reuters

    Photos From Russia’s Ongoing Invasion of Ukraine

    Recent images of the war and resistance in Chernihiv, Lviv, Kharkiv, Mariupol, Kyiv, and more