Climate, Energy & Environment
Daring To Conquer Plastic Pollution With Bricks
Gjenge Makers addresses the duo issues of plastic waste and the housing crisis through its plastic brick solution. Going by its “Build Alternatively, Build Affordably” model, it seeks to provide a crucial product that could empower individual communities by giving them the resources needed to rise out of poverty.
: Nzambi Matee’s Gjenge Makers recycles plastic waste into durable, affordable bricks, addressing Kenya’s housing crisis with sustainable construction materials.
By Charles Wachira
“ As I like saying, you have to be true to your why. Why are you doing whatever you are doing? What is the motivation behind it? For me, I was just tired of being on the sidelines of seeing plastics pollute the environment. And see where we are today. So act when you can and let the chips fall where they may,” says Nzambi Matee.
It was unmistakably her. Donning light blue overalls spotting visibly dark grease, her 5 ft 6 inches frame stood hospitable and somewhat down-to-earth in functional yellow boots. While a white beaded rosary lazily dropped on her neck, creating an indelible impression of a measured personality, if not spiritual.
And although her attendant mature girl locs gave her a tomboyish demeanor, her elocution underlined a polished elegance that betrayed a girl about town socialization.
Meet Nzambi Matee, 33, the 2020 Young Champion of the Earth winner, the UN’S highest environmental honour, given to individuals, groups and organizations that have had a transformative impact on the environment.
She’s the founder of Gjenge Makers Ltd, a Nairobi based social enterprise that addresses the prevailing issue of waste pollution in Kenya’s capital.
This former alumna of Jomo Kenyatta University of Agriculture and Technology (JKUAT)eponymously named after the country’s founding President who in 1978, , donated two hundred hectares of farmland for the establishment of the college where she studied physics and material science, recycles and up cycles plastics to strong and beautiful construction materials, with bricks standing out.
In a nutshell, Gjenge Makers addresses the duo issues of plastic waste and housing crisis through its plastic brick solution. And going by its “Build Alternatively, Build Affordably” model, it seeks to provide a crucial product that could empower individual communities by giving them the resources needed to rise out of poverty.
“ It’s my personal goal to help build more shelters to combat the housing crisis with our products which we make sure are accessible to essential institutions such as schools,” says Matee.
She adds that the bricks are made from a combination of plastic and sand with the pavers having a melting point higher than 350°C which makes them more durable than their concrete counterparts.
“ They have numerous advantages when compared to the conventional ones, for example they are 30 % more durable,” says the Mukuru Slums Development Project Manager, Veto Francis, whose organization is a client.
Matee worked as a data analyst and oil-industry engineer, prior to launching her company. In 2017, she quit her job and went ahead to create a small lab in her mother’s backyard home located in the eastern parts of Nairobi, a locale that nurtures a hustling and competitive spirit among denizens, where she tested sand and plastic combinations.
There she initially began manufacturing pavers.
Her neighbours understandably griped about the noise emanating from the nascent machine she was using but resentment only emboldened her to remain on track. It took a year to develop the right ratios for her paving bricks.
Like all determined entrepreneurs while she was on the throes of beginning her new act of becoming an entrepreneur she shut down her social life and plowed her entire savings into the project.
A UNEP website explained the throes of her entrepreneurship journey by stating that “Through trial and error, she and her team learned that some plastics bind together better than others. Her project was given a boost when Matee won a scholarship to attend a social entrepreneurship-training programme in the United States of America. With her paver samples packed in her luggage, she used the material labs in the University of Colorado Boulder to further test and refine the ratios of sand to plastic.”
Her time at the U.S based university gave her time to complete two important things: Finalize the machines that make the recycled materials into pavers and also refine the plastic-to-sand ratio pro-type.
Coincidentally, her workplace is located along Nairobi’s Industrial Area, which is synonymous with Kenya’s manufacturing sector, a locale found south east of the city’s Central Business District (CBD).
The location, verifiably, has a rich history.
Mooted in 1948 by the British administration, the 9.6 Km2 piece of land is a meticulous handiwork displaying the deliberate planning of the colonialists. In fact, on close scrutiny one is able to see derelict railway lines snaking on the newly carpeted tarmacked roads, encapsulating where the 1895 built Uganda-Kenya railway once did roaring business.
Today, the place still looks bustling with synonymous armies of workers who toil in the modern day factories that have resisted the temptation of relocating to more business friendly locations. But conspicuously missing are smoke spouting factory chimneys associated with fossil oil, an auspicious tell-tell sign, this East Africa state is on track of retiring fuel-oil -fired plants by 2030.
A homogeneous black gate stands in front of the workplace. You cannot see what is happening inside until when the sentry opens.
My goodness, once you are given entrée one discovers a rectangular yard that is one to behold .As paving tiles of generic colours, green, blue, black, you name it – make the place simply a beautiful riot of shades.
“ These are the sorts of bricks that we manufacture here. Right now the company generates between 1,000 and 1,500 bricks daily. They are 35% more durable than traditional bricks, seven times stronger than the usual standard bricks and they are relatively cheaper to purchase,” says Matee.
Inside the building that has a chock a –block feel noise from operating machines overwhelm the place that noticeably has a youthful crop of workers. From what I see I can tell the company has three machines, including an extruder that does the mixing of plastic waste with sand, at very high temperatures and a press that compresses the concoction.
“Since plastic is fibrous in nature the brick ends up having a stronger compression strength,” says Matee.
“ There are about 80 of us here and you can do the math of the number of people who rely on us for employment. We also contract people to supply us with waste from packaging factories which we get for free, although we pay for the plastic that we get from other recyclers,” says Matee.
Kenya’s unemployment rate currently is 10.4 percent, according to the Kenya National Bureau of Statistics.
Martin Njoroge was jobless despite holding an undergraduate degree from the local Kenyatta University until when he met Matee who offered her a job.
“Here we work in shifts, depending on the orders placed,” says Njoroge.
With some 4 million or years, inhabitants, Kenya’s capital produces around 2,400 tonnes of solid waste daily with only 45% of the waste generated undergoing any sort of recovery or treatment process. Disproportionately most of it ends up in open dumps or is burned.
From her telling, Matee was inspired to launch her business after habitually coming face to face with the scourge of plastic bags along the streets of the tenth most populated city in Africa.
“ I was seeing litter everywhere in Nairobi. It was pervasive. And while I understood that plastic waste was a global problem, I opted to do something practical and useful about the issue instead of complaining,” says Matee.
She set her mindset to singularly focus on one of the three basic needs necessary for a human being to survive including food, shelter and clothing.
“ I settled on shelter. My goal was to look at ways of converting plastic waste to assist in the provision of shelter in the housing space,” she says.
She certainly had her work cut out.
According to the Organisation for Economic Co-operation and Development (OECD), Africa has the world’s fastest urban growth rates and by 2050, its cities will be home to an additional 950 million people.
And it’s estimated that for the next 20 years 40,000 people in Africa will be relocating into its cities every day.
In fact, several recent studies project that by the end of this century, Africa will be the only continent experiencing population growth. With 13 of the world’s 20 biggest urban areas expected to be in Africa — up from just two today — as will more than a third of the world’s population.
And according to Habitat for Humanity, a global nonprofit housing organization, Kenya has an annual housing demand of 250,000 units with an estimated supply of 50,000 units, culminating in a housing deficit of 2 million units, or 80% deficit.
“ Housing affordability is a key challenge in Kenya with many people unable to afford to buy or build their own home. Only 2% of the formally constructed houses target lower-income families. About 6.4 million people, of Kenya’s urban population live in informal settlements. Many families are at high risk of diseases such as malaria, respiratory infections and or parasitic jiggers infestation,” says Habitat.
To date, Gjenge Makers has recycled more than 20 tons of plastic and officially created 112 job opportunities in the community.
“It is odd that we still have issues providing decent shelter which is a basic human need, yet plastic is a material that is misused and misunderstood for it has enormous potential,” says Matee.
So how did the thinking of an idea end up actually doing something about the thinking itself?
“We started Gjenge Makers in 2016, with a goal of reducing waste pollution in our community. We began by organizing cleanups in our community where we would sort the plastic and then resale it to recycling companies. This mode however was not creating the impact we anticipated because the rate of waste pollution was extraordinarily and exceeded what companies were buying,” says Matee.
“ After a series of research, we bumped into something fresh that involved the creating concrete using polymer. We broke down the waste plastic (HDPE & PET) at high temperature and pressure points, combined the aggregates with sand, leading us to produce our prototype and first minimum viable product (MVP) in 2017,” says Matee.
Right now, the company generates between 1,000 and 1,500 bricks per day, and Matee hopes to expand across Africa.
“ As I like saying, you have to be true to your why. Why are you doing whatever you are doing? What is the motivation behind it? For me, I was just tired of being on the sidelines of seeing plastics pollute the environment. And see where we are today. So act when you can and let the chips fall where they may,” says Matee.
Keywords:Plastic waste recycling:Sustainable construction materials:Housing affordability in Kenya:Gjenge Makers Ltd:Nzambi Matee entrepreneurship journey
Renewable Energy & Access
Kenya Court Halts $2B Lamu Coal Project
The 1,050MW Lamu coal plant faced a decade of opposition from environmental groups and UNESCO advocates. The verdict now strengthens Kenya’s clean energy transition.
Kenya’s High Court halts a $2 billion Lamu coal plant near a UNESCO site, citing environmental and heritage violations.
NAIROBI, Oct. 17 — Kenya’s High Court has blocked construction of the proposed $2 billion Lamu coal plant, citing serious environmental and social concerns. The ruling delivered virtually from Malindi by Justice Francis Mwangi Njoroge on October 16, 2025, is a major victory for activists and local residents who have fought the project for years.
The 1,050-megawatt facility, planned for Kenya’s historic Lamu County, where al-Shabaab militants are threatening a $ 25 billion Lamu Port-South Sudan-Ethiopia -Transport (LAPSSET) corridor project,was to be the country’s first coal-powered station. However, the court found that the developers failed to conduct proper public participation and environmental assessments before securing government approvals.
“The approval process lacked meaningful engagement with affected communities,” Justice Njoroge said. “The constitutional right to a clean and healthy environment must take precedence over economic ambition.”
A Decade of Controversy
The project was led by Amu Power Company Ltd, a consortium majority-owned by Centum Investment Co. Plc — one of Kenya’s largest investment firms. Other key partners included Gulf Energy Ltd and China Power Global, which was expected to handle engineering and construction under the $2 billion deal.
Since its inception in 2015, the Lamu coal plant has faced intense opposition. Local fishermen, conservationists, and global environmental organizations such as Greenpeace Africa and Natural Justice warned that the plant would damage marine ecosystems and pollute air quality. The site lies close to Lamu Old Town — a UNESCO World Heritage Site — which risked losing its protected status if construction went ahead.
In 2019, the National Environment Tribunal (NET) suspended the plant’s environmental license, ruling that the environmental review had been flawed. Amu Power appealed the decision, but the project stalled as government policy began shifting toward cleaner energy sources.
Kenya’s Energy Shift
Kenya’s energy mix has changed dramatically over the past decade. As of 2024, Kenya Power reports that 86% of electricity comes from renewable sources such as geothermal, hydro, wind, and solar.
The Lamu coal project was originally conceived to provide cheap, reliable energy for industrial users. Yet falling renewable costs and international climate pressure have made coal both economically and politically unviable.
“Coal no longer fits Kenya’s green growth agenda,” said Joseph Njoroge, former Principal Secretary for Energy. “The economics simply don’t add up, and the environmental cost is too high.”
In 2022, the Ministry of Energy and Petroleum reaffirmed Kenya’s commitment to 100% clean energy by 2030, aligning with the Paris Agreement and national Vision 2030 goals.
Impact on Investors and Communities
The court’s ruling carries deep implications for both investors and local livelihoods. Centum’s subsidiary, Amu Power, had already invested around KSh 3.2 billion ($21 million) in feasibility studies, design work, and land acquisition.
A company spokesperson said Amu Power was “reviewing the judgment and considering its legal options.”
For Lamu residents, however, the decision was cause for celebration.
“This is not just a win for Lamu—it’s a win for all Kenyans who believe development must respect people and planet,” said Omar Elmawi, coordinator of the DeCOALonize Coalition, which led local resistance efforts.
Human rights groups, including Amnesty International Kenya and the Kenya Human Rights Commission, welcomed the verdict, urging the government to compensate families affected by earlier land acquisitions. They also called for the redirection of public investment toward renewable infrastructure in coastal Kenya.
A Turning Point for Green Governance
Experts believe the Kenya court ruling could reshape how African countries balance industrialization with environmental responsibility.
“Kenya’s courts are increasingly defining the country’s sustainable development trajectory,” said Dr. Wanjira Mathai, Managing Director for Africa at the World Resources Institute. “This judgment shows that rule of law and green growth can advance together.”
The High Court decision effectively voids the Lamu plant’s environmental license. Any attempt to revive the project would require a fresh environmental review and new public consultations — a process expected to take years.
For now, the ruling positions Kenya as a continental leader in renewable energy governance. It also signals to international investors that environmental accountability is no longer optional in Africa’s infrastructure landscape.
Climate, Energy & Environment
U.S. Backs 1-Year AGOA Extension Amid Trade Strains
The Trump administration’s tariff hikes have eroded AGOA’s benefits. A short-term extension may not be enough to restore African confidence.
U.S. supports a 1-year AGOA extension; African exporters may suffer amid tariffs and tight deadlines for renewal.
A senior White House official confirmed that the Trump administration supports a one-year extension of the African Growth and Opportunity Act (AGOA), which is set to expire at the end of the month. While the move offers some reassurance to African exporters, significant uncertainty remains over whether Congress will act in time.
Trade flows underscore the stakes
U.S. trade with Africa has been rising: in 2024, total goods trade reached roughly $72 billion, with exports to Africa at $32.4 billion and imports at $39.6 billion, according to the U.S. Trade Representative’s office. The trade deficit stood at about $7.2 billion.
Under AGOA specifically, U.S. imports from beneficiary countries dropped to about $8 billion in 2024, down from $9.3 billion in 2023, according to a Congressional Research Service note. In 2023, imports under AGOA totaled nearly $9.7 billion, led by crude oil ($4.2 billion), apparel ($1.1 billion) and agricultural products, data from the Center for Global Development shows.
These figures illustrate how much is now at risk if AGOA were allowed to lapse.
Background: a pact under pressure
First enacted in 2000 under President Bill Clinton, AGOA grants eligible sub-Saharan African countries duty-free access to the U.S. market across many product lines. Over the decades, it has become a primary vehicle of U.S.–Africa economic engagement.
However, that preferential access has been eroded by the Trump administration’s unilateral tariffs—ranging from 10 percent to 30 percent—on several African exports. These measures have muted AGOA’s advantages, creating distrust among beneficiary nations.
Supporters argue AGOA has sustained hundreds of thousands of jobs in over 30 countries and served as a counterbalance to China’s rising presence in Africa.
Renewal prospects and obstacles
Despite White House backing, the window for Congress to renew AGOA is narrow. Leaders anticipate its extension may need to ride on a stopgap funding bill, a common legislative strategy for time-sensitive measures.
Still, internal divisions complicate that path. Some U.S. lawmakers question AGOA’s long-term efficacy and fairness, especially in a climate where tariffs have distorted the original benefits.
From the African side, pressure is intensifying. Delegations from Kenya, Lesotho, South Africa and others have urgently lobbied lawmakers and trade officials to act. Lesotho’s trade minister warned that delays could cost garment sector jobs.
South Africa’s trade minister, Parks Tau, voiced cautious optimism, noting bipartisan support in Congress but suggesting any extension is likely to be short (one to three years) to allow for later reforms. Tau is also in talks with U.S. officials over tariff relief on South African exports hit by 30 percent duties.
Consequences of lapse
If AGOA expires—even temporarily—analysts forecast sharp harm to sectors such as apparel, metals, chemicals, and agriculture. The International Trade Centre estimates Lesotho’s clothing exports could fall by nearly 29 percent, while South Africa’s car exports might shrink 23 percent by 2029.
Countries like Kenya, Tanzania, Madagascar, and Eswatini are also seen as particularly vulnerable. Some firms already say they are cancelling U.S. orders or pivoting to alternative supply chains, according to Business of Fashion.
Beyond the economic toll, a lapse in AGOA would represent a diplomatic setback for the U.S. in Africa—particularly as China and others deepen their trade and investment presence across the continent.
The road ahead
A multiyear renewal seems unlikely in the short term. A one-year extension is the most politically feasible option under current constraints. Still, such a stopgap would not fully restore trust or correct structural distortions caused by recent tariffs.
Which way Congress leans—and whether it can build bipartisan momentum quickly—will determine whether AGOA endures, is reshaped, or quietly disappears. Time is ticking.
Renewable Energy & Access
Ethiopia Signs Nuclear Energy Agreement with Russia to Develop Power Plant
If completed, Ethiopia will become the second sub-Saharan African nation with nuclear power. Experts say the Ethiopia-Russia deal could serve as a model for Africa’s clean energy transition.
On September 25, Ethiopia signed a nuclear energy deal with Russia in Moscow, aiming to diversify power sources, build local expertise, and boost regional energy security.
Ethiopia Signs Landmark Nuclear Energy Deal with Russia to Diversify Power Sources
Ethiopia took a historic step on September 25, 2025, by signing a nuclear energy cooperation agreement with Russia in Moscow. The deal, formalized during a nuclear energy forum, involves the construction of a nuclear power plant in Ethiopia and represents a major leap in the country’s energy strategy. Ethiopian Electric Power CEO Ashebir Balcha and Rosatom CEO Aleksei Likhachev signed the comprehensive action plan, highlighting the nations’ commitment to collaboration in energy technology and infrastructure.
Strategic Significance for Ethiopia
The agreement outlines a roadmap for building the nuclear facility, covering technical planning, financing, and the creation of a Nuclear Science and Technology Center in Ethiopia. The deal also includes training Ethiopian personnel in nuclear operations to develop domestic expertise. For Ethiopia, this project marks a critical step toward diversifying its energy mix beyond hydropower, solar, and wind.
Prime Minister Abiy Ahmed emphasized the importance of the initiative: “Nuclear technology provides reliable, low-emission power, strengthens food security, optimizes water management, and empowers our scientists.” He added that Ethiopia’s rapidly growing economy and population of over 130 million demand a diversified energy portfolio. Current investments, including the Grand Ethiopian Renaissance Dam (GERD), are not sufficient to meet future energy needs.
The Deal’s Scope and Capacity Building
Under the agreement, Rosatom will assist Ethiopia in constructing the nuclear power plant while building local technical capacity. Ethiopian engineers and technicians will receive specialized training in nuclear science, safety protocols, and operations. This ensures that the project does not only generate power but also strengthens Ethiopia’s scientific and technological base.
Ashebir Balcha, CEO of Ethiopian Electric Power, said: “This nuclear facility is more than energy generation; it’s about building knowledge, capacity, and innovation for Ethiopia’s future.” The initiative positions Ethiopia to emerge as a regional hub for advanced energy technology.
Regional and Continental Implications
If completed, Ethiopia would become only the second sub-Saharan African country after South Africa to operate a nuclear power plant. This milestone would demonstrate Africa’s capacity to adopt advanced, low-carbon energy solutions and could serve as a blueprint for other nations facing surging energy demand.
For example, this May, neighbouring Kenya signed a $1b renewable energy deal positioning itself as Africa’s green leader.
Energy analysts highlight that Ethiopia’s growing population, urbanization, and industrialization require a resilient energy system. According to the World Bank, electricity demand in Ethiopia is projected to double over the next decade. Nuclear energy, with high reliability and low greenhouse gas emissions, offers a sustainable solution to meet this demand.
The development also has broader geopolitical implications. By partnering with Russia, Ethiopia strengthens strategic ties while signaling its intention to diversify energy sources and reduce dependence on a single energy type. The project enhances regional energy security, providing a potential model for neighboring countries in East Africa.
Risks and Challenges
Despite the promise, nuclear energy projects are complex, expensive, and politically sensitive. Ensuring safe operations, adhering to international safety standards, and securing consistent funding are critical for the project’s success. Ethiopia must also manage public perception and regional concerns over nuclear proliferation, while demonstrating transparency and regulatory compliance.
A Vision for Sustainable Energy
The Ethiopia-Russia nuclear partnership represents a forward-looking approach to energy security. Combined with hydropower, solar, and wind, nuclear energy will contribute to a diversified, sustainable power system capable of supporting economic growth, innovation, and social development.
Prime Minister Abiy Ahmed stressed: “The nuclear deal is a strategic investment in our nation’s human capital, technological capacity, and future prosperity.” By integrating nuclear power, Ethiopia sets a precedent for the continent, showing that African nations can safely and effectively adopt advanced energy solutions to meet rising demand.
Explore further: Rosatom | Ethiopian Electric Power | Grand Ethiopian Renaissance Dam | South Africa Nuclear Program
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