Sustainability in Action: environmental workshop and clean-up in Dar es Salaam

Two days, two primary schools, 660 kilograms of litter: on 22 and 23 October 2026, MBRC THE CHILDREN ran the workshop “Sustainability in Action” at Likwati and Tungi Primary School in Dar es Salaam (Tanzania) – kindly supported by Müller Holding GmbH & Co. KG.

From the classroom to the playground

On the first day, in the classroom of Likwati Primary School, the children learned about the four types of waste: organic, recyclable, non-recyclable and hazardous. With sorting exercises at four bins, drawing games and quiz rounds, they put what they had learned straight into practice – around 90 per cent of the quiz answers were correct.

On the second day, they went outside: guided by the MBRC team and teachers, the pupils of both schools put what they had learned into practice in a supervised clean-up of the Tungi Primary School playground – after a safety briefing and wearing gloves. Hazardous waste such as broken glass was picked up by adults only.

The result

• around 65 participants – children, teachers and the MBRC team
• around 28,000 m² of ground cleared of litter
• 60 bags with a total of 660 kg of waste, weighed on calibrated scales and disposed of properly

A waste and brand analysis showed that most of the litter consists of single-use packaging from local snack and drinks manufacturers – plastic bags, PET bottles and multilayer films.

“The children saw how much litter there is on their own playground – and learned that change starts with each and every one of us.”

Sven Jacobi, founder of the MBRC Foundation

At the end, the children made personal environmental pledges – and are taking what they learned home to their families.

Many thanks to Müller Holding GmbH & Co. KG, who made this campaign possible. You can find out more on our project page. Would you like to support campaigns like this? You can donate here.