Columbia to Switch Off Lights Again this Year for WWF Earth Hour

For the second year running, Columbia University will observe Earth Hour on Saturday, March 30 at 8:30 p.m. along with other universities, cities, and businesses in more than 180 countries worldwide.

March 25, 2019

Earth Hour, created by the World Wildlife Fund (WWF), invites people to switch off their lights for one hour to show support for protecting our planet and stopping climate change. Columbia Facilities and Operations will shut off non-essential campus lights — like the Low Library exterior lights, the lounge at Lerner Hall, and the Café 212 wall — from 8:30 p.m. to 9:30 p.m. on Saturday to honor the event. Earth Hour aligns with the University’s Sustainability Plan and the Sustainable Columbia movement, and schools across campus have committed to participate.

Starting as a symbolic lights-out event in Sydney in 2007, WWF’s Earth Hour has grown to become the world's largest grassroots movement for the environment, inspiring more than a million individuals to take tangible climate action for over a decade. Different countries are organizing events according to environmental issues that they feel are most relevant to them. Visit to see what’s happening in locations around the world.

Everyone can join Earth Hour by turning off all non-essential lights at 8:30 p.m. in their local time zone and raising awareness about climate change through their own social channels.