Trust for Sustainable Living

About the 2021 Sustainability Challenge


Theme: Protecting biodiversity- CAST YOUR VOTES!!!

As we draw closer to the conference for the UN Convention on Biological Diversity, and TSL’s Partner Power Summit: PROTECTING BIODIVERSITY this summer, we are excited to announce that voting for our Sustainability Challenge has begun!

This year’s Sustainability Challenge is hosted around the same theme as the UN Convention and our own Summit, so we asked learners and educators across the globe to submit their short videos championing biodiversity!

This is where you come in! Here at the Trust for Sustainable Living we want to get our wonderful supporters involved. So we’re inviting you to have your say and decide your favourite video!

To cast your vote on your favourite videos you can share, like, comment, and more on the platforms where our videos have been uploaded. The number of shares, likes, comments, etc., will be collected from all the sites and then totalled to decide our winner!

To watch and vote on #TSLBiodiversiy2021 entries, see the videos on our Facebook, LinkedIn, Twitter, and YouTube.

Voting closes 23:59 GMT 28th April 2021. The overall winner will be awarded the 2021 Challenge Trophy and a cash prize of £500 or equivalent. The winning entry for each age category will receive a special e-medal and gift.

The TSL Sustainability Challenge is a video contest for learners worldwide, organised in parallel with our annual International Schools Essay Competition & Debate.

The Sustainability Challenge provides a platform for voices to be heard and recognises and rewards the sustainability ideas, actions and leadership of participants of all ages. This year we have been delighted to receive 50 entries from 31 schools in 19 countries! 

The winners will be announced on 1 May 2021, as part of the lead-up to the next Conference of Parties (COP 15) of the UN Convention on Biological Diversity (CBD). The winning videos will be sent to UN Secretary General António Guterres and other leaders in the international community.


Previous Winners

2020 – No trophy awarded due to Covid-19

2019 – United World College, Singapore – ‘TSL 2019 Schools Sustainability Challenge United World College Singapore’


2018 – Shree Kandeshowori Basic School, Nepal – ‘Shree Kandeshowori Basic School’


2017 – Project from CEM Julia Kubitschek School, Brasilia, Brazil – ‘In Defense of Guara Creek’


2016 – Sampaloc Elementary School, Philippines – ‘Eco-sustainable School’


2015 – Spiru Haret High School Moinesti, Romania – ‘Happiness’

The 2021 Challenge is now open

Key dates