In a school in South Africa, a group of students stare at a row of small plants growing in a greenhouse. Each one is involved in the lesson, caring for the growing crops.
But this is no ordinary classroom setting. These children are learning about aquaponics, a method of growing plants and fish in a mutually beneficial water system. This ancient technique of food production is now being taught to millions of schoolchildren after being introduced by the South African government seven years ago.
Laerskool Kempton Park on the edge of Johannesburg was one of the first schools to introduce the subject with the aim of improving food security. This is a serious challenge in a country where an estimated 19.7 million people, or around 30% of the population, experience moderate levels of food insecurity, meaning that they struggle to afford enough food for a healthy, balanced diet.
Bringing the farm to school
Aquaponics is a way of supporting communities to access food in a sustainable and efficient way. The solution is simple: fish waste is turned into available nutrients by bacteria in the water. Plants absorb these nutrients and the cleaned water is returned to the fish tank.
There are multiple benefits to this approach. The system doesn’t require chemical fertilisers, soil or large tracts of land. It is also highly efficient, with recirculated water being used over and over again. This is an important feature in areas of South Africa that experience drought or unpredictable weather.
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Aquaponics can offer a range of benefits depending on the local context. In South Africa, townships in major cities such as Johannesburg don’t always have the space to produce their own food, while in other places, such as the Northern Cape, extreme weather is making agriculture much harder.
At Laerskool Kempton Park, the students have benefited from the innovative work of INMED, a non-profit organisation that supports vulnerable children and families in the country.
INMED has trained hundreds of teachers and over 7,000 children on the benefits of aquaponics. With the help of funding from the Adaptation Fund through the UNDP-Adaptation Fund Climate Innovation Accelerator (AFCIA), the organisation was able to develop its own aquaponics system to be used in schools.
Scaling up the solution
INMED describes its prototype as a ‘plug and play’ system, designed to be modular and easy to install and manage. The system includes a 2,000-litre fish tank powered by a solar pump to circulate water. The design is simple with a view that it could be easily replicated across different school settings.
Unathi Sihlahla, director at INMED South Africa, told Climate Home News that “aquaponics speaks to a number of challenges… including limited access to nutritious food, high youth unemployment, water scarcity, and in many cases, poor or no access to arable land.”
INMED’s prototype allows communities to work around these problems as it doesn’t need soil and uses far less water than conventional agriculture.
“We’ve seen schools that previously had no food production now able to grow vegetables consistently, while also producing fish. That food often goes straight into school meals or supports vulnerable households nearby,” Sihlahla added. The project estimates that over 5,300 kilogrammes of food have been harvested in each quarter the system has been operating.
As aquaponics is now part of the school curriculum, many educational departments across South Africa have been looking at ways to teach the subject. INMED’s innovative design could provide a handy solution. The organisation has already started to roll it out across different provinces and a new collaboration with the Eastern Cape Provincial Department of Education is in the works. INMED is also scaling the ‘plug and play’ model in Tanzania.
Giving youth a sense of pride
For educators, teaching schoolchildren new agricultural skills is not only about improving food security, but also about creating the next generation of farmers. This group will need to grow food with the increased threat of extreme weather events and having knowledge of alternative methods, such as aquaponics, could be key.
“Agriculture is not seen as something young people want to go into, but when they are exposed to something like aquaponics, it feels modern and relevant,” said Sihlahla, adding that some students have started their own projects at home or are looking to continue studying the method.
“There’s also a sense of pride. Producing food that supports your school or community changes how young people see themselves and their role.”
Engaging the next generation
The Adaptation Fund’s support for young people extends beyond South Africa. Several other related projects aim to equip youth with practical skills for climate adaptation.
In Costa Rica, a $10-million project implemented by private foundation Fundecooperación included several creative youth-focused programmes in climate-vulnerable areas. It trained young people in coral reef restoration and farming techniques, involved high school students in community water resource monitoring and management, shared knowledge on adaptation through a theatre tour in schools, and created an art mural competition using AI.
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In Lesotho, meanwhile, climate education is being integrated into the school curriculum through climate-smart agriculture materials and teacher training rolled out across primary and secondary schools. This is equipping students from an early age with practical, locally relevant knowledge to build resilience.
“Children and young people are among the most vulnerable to climate change,” said Mikko Ollikainen, head of the Adaptation Fund. “These programmes are not only training young people in adaptation but empowering them.”
Adam Wentworth is a freelance writer based in Brighton, UK.
The post Young South Africans take up sustainable agriculture for food security appeared first on Climate Home News.
Young South Africans take up sustainable agriculture for food security
Next week, diplomats from around the world will descend on Yerevan, Armenia, to negotiate a series of decisions under the UN Convention on Biological Diversity (CBD).
Between 19 and 30 October, 196 parties will gather to hammer out the precise wording of the dozens of legal texts that make up the decisions under the Conference of the Parties (COP) to the CBD.
This year’s summit is particularly significant, as it marks the halfway point between the agreement of the Kunming-Montreal Global Biodiversity Framework and the deadline for achieving its targets.
The CBD has found that countries are currently not on track to meet 22 out of the framework’s 23 targets.
During the fortnight, delegates will also be negotiating decisions relating to the two supplemental protocols to the CBD: the Cartagena Protocol, which covers biosafety; and the Nagoya Protocol, which covers access and benefit-sharing for the use of genetic resources.
(The Cartagena and Nagoya Protocols, which are each governed by a “meeting of the parties”, or “MOP”, have fewer parties than the CBD as a whole, with 173 and 141, respectively.)
Carbon Brief is tracking the progress of countries towards consensus on dozens of negotiating texts using the interactive table below.
The tracker includes texts from the COP, as well as the MOPs for the Cartagena and Nagoya protocols. It also includes draft decisions from the most recent subsidiary body meetings, as these form the starting point for the negotiations in Yerevan.
The CBD has three subsidiary bodies: the subsidiary body on scientific, technical and technological advice (SBSTTA), the subsidiary body on implementation (SBI) and the subsidiary body on article 8(j) and other provisions (SB8J).
SB8J focuses on issues related to the Indigenous peoples and local communities. It was established at COP16 in Cali, Colombia, in 2024.
The first two columns of the interactive tracker list the topic of each agenda item and the relevant body, with subsequent columns including dates, page counts and links to the original documents.
The table is searchable and can be sorted using the arrows in the header.
Areas of disagreement in UN draft texts are denoted by square brackets. Counting the brackets in a particular iteration of a text therefore gives a sense of how far parties are from reaching consensus.
The bracket column is colour-coded, with dark green indicating a low number of brackets and red indicating a high number of brackets remaining.
Texts can also present parties with choices using “options” or alternatives (“alt”), which are counted together in the sixth column of the table.
The key discussions in Yerevan will centre around two agenda items in particular. The first is the global review, which will assess progress towards the GBF and make recommendations for accelerating action.
The second is finance, which can be separated into two parts: resource mobilisation and the financial mechanism. On resource mobilisation, biodiverse global south countries are likely to push for an increased amount of international finance for conservation.
Disagreement over the creation of the financial mechanism led to the suspension of COP16 in Cali in October 2024, as parties failed to find agreement on the mobilisation of finance before the end of the summit.
Global south countries want the establishment of a separate financial mechanism under the control of the CBD; global north countries largely prefer to maintain the existing mechanism, which sits under the Global Environment Facility.
At the resumed session of COP16 in Rome in early 2025, countries agreed on a roadmap that would lead to the establishment of a permanent mechanism.
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The post Interactive: Tracking negotiating texts at the COP17 biodiversity summit appeared first on Carbon Brief.
Interactive: Tracking negotiating texts at the COP17 biodiversity summit
A beacon of love
On an outer island of Fiji, two thousand nautical miles from Sydney, is a shining light of hope and resilience for our troubled world.
The island of Kioa is home to a Tuvaluan community who migrated from their atoll of Vaitupu in the late 1940s. It is a land of warm hearts, big smiles, and deep cultural roots; a place where the sound of a conch still summons the island together, where islanders paddle out to fish in carved outrigger canoes, and healthy happy children walk barefoot to school.
Here, culture is life. Kioans live sustainably through their traditional knowledge and practices. The island is alive with song, dance and the rhythms of a life tied to the tides, the winds, and the seasons.
Facing the future
Greenpeace has been lucky to have a relationship with Kioa for a number of years now, and we are continually learning from this remarkable community.
Last week, as part of our Voyaging Oceania project, we returned to the island. Our purpose was twofold —- to carry messages from the island to leaders gathering in Nadi this week for the Pacific Pre-COP, and to support the Kioa community in their efforts to improve water security for the island.
Unlike Tuvalu itself, with its eight atolls, Kioa is a mountainous, forested and richly fertile island. It will remain habitable far into the future. Kioans did not initially migrate from Vaitupu due to climate change, but the move was prophetic. They now have a lifeboat.
However, even Kioa faces challenges on our rapidly warming planet, in particular when it comes to water. Climate change is shifting once reliable rainfall patterns. On top of this, the island is already feeling the effect of this year’s intensifying El Niño event, which for Fiji means reduced rainfall and prolonged dry spells.
Right now, fresh water has to be carefully rationed, and is only available for a few hours a day. During last week’s visit aboard our campaigning ship Oceania, Greenpeace was privileged to work with the Kioa community on a new solar-powered water distribution project for the island.
Designed and led by the island, the project involves using a solar pump to move water from a reliable source to a storage tank and then using gravity to distribute the water around the village.
It was a lesson in how local knowledge and ingenuity can be the backbone of today’s climate solutions. To build a dam around the source, the local community knew the exact spot where they could gather gravel at low tide to mix with the cement. They took only what was needed, knowing that all resources must be carefully conserved. Kioa has no roads and no machinery, and it was an all-of-island effort to carry the materials up to the project site, including many heavy bags of sand and rock.
Such projects truly bring to life the vision of a resilient, locally-led, fossil fuel free Pacific.