Trust for Sustainable Living

Want to enter? Here's how

Become a Teacher Champion

Teacher Champions represent their school and submit all the children’s essays. Children can participate in one of two categories – Primary Schools (ages 7-11) or Secondary Schools (ages 11-17).

Register as a Teacher Champion

Study the brief

Every year the competition focuses on a different global sustainability challenge.


The Essay Competition and Sustainability Challenge Video Competition for 2021 are now closed.

See the brief

Fingers crossed

Essay results were announced online on 15 February 2021.

The top entries either receive Finalist (top 10%) or Honourable Mention (top 10-33%) award certificates. The overall Grand Prize Winner, and top ten medallists in each category, were officially announced at the International School Debates and Awards on July 5&6 2021

Judging criteria

School debates


The 2021 Schools Debates on Protecting Biodiversity will take place as follows: Country Debates in Spring 2021, and online International Debate & Teacher Champions Exchange as part of the Partner Power: Protecting Biodiversity Summit 5-10 July 2021.

Learn more

The 2021 competition is now closed

Key dates