The Schools Sustainability Challenge is judged on the quality of the projects featured in the videos and their potential replicability around the world.
Social media responses to the videos are also taken into account during the judging process.
Viewers are invited to show their support for their favourite videos on YouTube.
End September 2018
Registration opens for TSL 2019 Schools Sustainability Challenge video competition.
20 December 2018
Deadline for video entries to 2019 Schools Sustainability Challenge.
31 May 2019
End of judging of 2019 video entries.
8-12 July 2019
Annoucement of 2019 Trophy Winner at TSL International Schools Debates & Awards, British Columbia, Canada.