Reimagine air conditioning

NXplorers students in Al Alaa Bin Al Hadrami School in Oman, reimagined the use of condensed water collected from air conditioning units, to create a new source of clean water that could water crops inside and outside their school.

Oman is one of the most water-stressed countries in the world* and faces a high-risk of water shortages. Different water sources need to be considered as natural water sources are becoming unstable. Using the NXplorers toolkit, the students saw how a drop of water could build their future. They saw an opportunity to use the condensed water collected in AC units, that would otherwise go to waste, as a sustainable water source that could help support local agriculture and help crops thrive overall. These are the steps they followed…

Recollect Paper

The Omani NXplorers student team wanted to stop the high percentage of waste paper being disposed of inadequately. While it is one of the largest culprits leading to a build-up of waste, it is a problem that is easy to intervene and act upon. They began by setting up containers in different places around their school so that all paper could be collected at source and instantly recycled.

Reconvert waste into natural fertiliser

After grinding all the paper down into smaller pieces, the students then developed a chemical solution that could convert the waste paper into a natural fertiliser. Paper is made of cellulose which can be a useful source of carbon for fertilisers - carbon provides energy for microorganisms that then break down organic matter. When the students mixed the chemical solution with the paper they were able to create a nutrient-rich, natural fertiliser. They tested the fertiliser and grew healthy batches of tomatoes, onion and mint plants - it was a success!

NXplorers students test their fertiliser formula

Revive circular habits

The NXplorers students discovered how a small change can make a big difference. Natural fertilisers nourish soil, improving its structure and its ability to hold water and nutrients, therefore improving plant growth. The students were able to start growing plentiful fruit and vegetables for the local Omani community, but they also implemented a long-term circular habit in their school that could continually create a positive impact, by reducing waste and pollution, for the long-term.

Plants treated with NXplorers students’ fertiliser

Use of pure, condensed water can create flourishing plants and crops in the long term, for both the school and the local community

NXplorers participant, Oman


The simple solution the NXplorers students developed embeds sustainable practices, enhances agricultural production and protects the environment. Their solution contributes to several UN SDGs overall, including 2, 12 and 13.

2. Zero Hunger

End hunger, achieve food security and improved nutrition and promote sustainable agriculture

12. Responsible consumption and production

Ensure sustainable consumption and production patterns

13. Climate action

Take urgent action to combat climate change and its impacts

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UN SDGs diagram

Diagram of the United Nations’ Sustainable Development Goals numbered in a large circle, each with a smaller diagram below to represent the specific Development Goal. All of the Development Goals are faded, apart from three of them:

2. Zero hunger
12. Responsible consumption and production
13. Climate action

Within the circle there are three circles in a triangle formation reading ‘Energy’, ‘Water’ and ‘Food’, with arrows to show how they are all interconnected.

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