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Toronto Catholic District School Board

Earth Hour                                                  

Earth Hour poster 


Please register your school’s participation in this event by completing the survey below by March 29, 2019.


Tweet at #TCDSBEarthHour how your school is celebrating Earth Hour






Before You Start Planning:

  • Confirm with your Principal that your school has registered on the Board's Environmental Earth Hour Site.


  • Registration on the Earth Hour website is not required.


  • The TCDSB Environmental Committee has prepared suggested activities and resources for schools to use when planning their Earth Hour event.  See resources below.




  • TCDSB Lights Out Sticker - ​​To order Lights Out Stickers for your school, please email with the quantity required. Please note: the stickers are for use above classroom light switches to raise awareness among the students.



  • 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.  We thank our TCDSB Environment Committee for gathering all the material and for their enthusiasm in bringing awareness to these opportunities for learning and for the benefit of our planet.