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TCDSB Earth Hour Challenge

Join the global movement and turn out the lights where it is safe to do so and where it will not adversely disrupt the normal classroom teaching. 

Tweet @TCDSB or tag us on Instagram using the hashtag #TCDSBEarthHour and let us know how your school is celebrating Earth Hour. 

Operational suggestions for schools and facilities:

  • Talk to your staff and any community groups that use your building about how to make Earth Hour safe and successful. 
  • Exterior of building – ensure that external lights and parking lot lights are turned off where possible, keeping safety / security lighting in mind. 
  • Hallway lights – reduce to minimal lighting to ensure student and staff safety, in accordance with the school’s occupational safety policy. 
  • Classroom lights – turn off if this does not adversely disrupt the normal classroom teaching. 
  • Staff Areas – ensure non-essential lights are turned off including staff lounge, principal’s office and reception area. 
  • Gymnasiums / Cafeterias / Library – turn lights to a minimum in these areas and post signs or a poster to let visitors to the school know about your Earth Hour commitments. 


  • Acting Today, Shaping Tomorrow is a Ministry document on the future of environmental curriculum in Ontario and can be downloaded along with other environmental resources from the Ministry of Ontario​ ​

We hope that this material is helpful and will provide opportunity for all schools to participate.​​​















Please select image below to download a TCDSB Earth Hour Challenge flyer.