Africa news, articles and features | 91av /topic/africa/ Science news and science articles from 91av Tue, 26 Aug 2025 19:34:13 +0000 en-US hourly 1 https://wordpress.org/?v=7.0.1 242057827 Is Africa about to see the solar energy boom it needs? /article/2493749-is-africa-about-to-see-the-solar-energy-boom-it-needs/?utm_campaign=RSS|NSNS&utm_content=africa&utm_medium=RSS&utm_source=NSNS Mon, 25 Aug 2025 23:01:26 +0000 /?post_type=article&p=2493749
Solar panels for sale in Niamey, Niger, a country where solar energy is booming
BOUREIMA HAMA/AFP via Getty Images

A record surge of solar panels flowing from China to countries in Africa over the past year is a sign the continent is seeing a rapid build-out of renewable energy. That could help expand access to cheap, clean electricity and reduce reliance on imported fossil fuels.

“This isn’t a massive explosion yet in itself,” says at Ember, an energy think tank in the UK. “It’s the start of the takeoff.”

Jones and his colleagues analysed on Chinese solar panel exports since 2017. There is some solar panel manufacturing capacity in Africa – but as with most of the world, Chinese imports make up nearly all of the continent’s supply.

Between June 2024 and 2025, the researchers found exports to Africa surged 60 per cent compared to the previous year, amounting to just over 15 gigawatts of power capacity imported over that period.

Unlike an earlier surge in 2022 and 2023 that was driven mostly by imports to South Africa, this upward trend was spread across the continent – with 20 countries seeing import records and 25 countries importing more than 100 megawatts worth of panels. “It’s not being led by one or two countries,” says Jones. “To me, that’s the most incredible part of the story.”

South Africa was still the leader, importing about a quarter of the total. But other countries also imported a raft of panels: Nigeria was second with 1721 megawatts, followed by Algeria with 1199 megawatts, about a tenth of the total. Over the past two years, solar panel imports from China to countries in Africa – excluding South Africa –have more than tripled.

Assuming all the panels imported over the past year were installed, the researchers estimate 16 countries imported enough to supply at least 5 per cent of current electricity generation; Sierra Leone could generate more than 60 per cent of its current electricity with the panels it imported alone. These solar imports could begin to offset far more expensive fossil fuel imports.

“Africa’s just energy transition is no longer a future aspiration. It is unfolding now,” says at Greenpeace Africa, an environmental advocacy group. “This transition has a huge potential of reshaping how we build resilience to the climate chaos and drive development.”

The surge comes partly from large solar installations under construction, but that isn’t the whole story. Jones says a lot of the imports appear to be going to small, distributed installations on rooftops or farms, as people seek cheaper, more reliable sources than national grids. A similar trend is playing out in Pakistan, which saw explosive growth in rooftop solar over the past few years driven by the falling cost of panels.

This is a hopeful trend, given about in Africa – nearly half of the continent’s population – lack access to reliable electricity. However, solar development on the continent still lags behind the rest of the world. African countries have struggled to attract investment in renewable energy, receiving just of the global total in recent decades, according to the International Energy Agency. Over the past year, Pakistan alone saw more solar panel imports than all of Africa, despite having one-sixth the population.

“The real challenge before us is to turn this momentum into lasting gains by aligning financing, policy and local industries to ensure clean energy is not only available, but also reliable, affordable and inclusive for all Africans,” says Wemanya.

Caravan in front of the Great Pyramid of Giza, Egypt

Scientific pioneers of the ancient world, Cairo and Alexandria: Egypt

Embark on an unforgettable journey through Egypt’s two most iconic cities, Cairo and Alexandria, where ancient history meets modern charm.

Article amended on 26 August 2025

We corrected Amos Wemanya’s affiliation

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New subtype of diabetes found in youths from sub-Saharan Africa /article/2492207-new-subtype-of-diabetes-found-in-youths-from-sub-saharan-africa/?utm_campaign=RSS|NSNS&utm_content=africa&utm_medium=RSS&utm_source=NSNS Thu, 14 Aug 2025 16:00:35 +0000 /?post_type=article&p=2492207 2492207 Great apes threatened by mining for electric vehicle batteries /article/2425231-great-apes-threatened-by-mining-for-electric-vehicle-batteries/?utm_campaign=RSS|NSNS&utm_content=africa&utm_medium=RSS&utm_source=NSNS Wed, 03 Apr 2024 18:00:11 +0000 /?post_type=article&p=2425231
The noise pollution, habitat loss and disease spillover that can come with mining could threaten chimpanzee populations in some countries in Africa
Ari Wid/Shutterstock

More than a third of the great apes living in Africa are under threat from the booming demand for minerals that are critical to the creation of green energy technologies, such as electric vehicles.

Africa is home to around one sixth of the world’s remaining forests, with the habitat found in countries such as Ghana, Gabon and Uganda. The continent also houses four great ape species: chimpanzees, bonobos and two species of gorilla.

But many of these great apes live in regions eyed by mining firms as potential sites to extract commodities. For instance, , and 22 per cent of its graphite.

To assess the scale of the threat to great ape populations, , formerly at the German Centre for Integrative Biodiversity Research and now at the non-profit conservation group Re:wild in Austin, Texas, and her colleagues overlaid the location of operational and planned mining sites across 17 African countries with available data on the density and distribution of ape populations.

The team drew a 50 kilometre “buffer zone” around mining sites, to account both for their direct impacts on ape populations, such as noise pollution, habitat loss and disease spillover, as well as indirect disturbances, such as the construction of new service roads and infrastructure.

In total, 180,000 great apes – just over one-third of the entire continental population – could be threatened by mining activities, the researchers found.

The West African countries Liberia, Sierra Leone, Mali and Guinea saw the largest overlap between ape populations and mining sites. In Guinea, 83 per cent of the ape population could be affected by mining, the study finds.

The team only considered industrial mining projects, says Junker. The threat could be even larger once the impact of artisanal mines, where miners usually work in rudimentary and often hazardous conditions, is considered.

Cobalt, manganese and graphite are all used in the manufacture of lithium-ion batteries, which power electric vehicles. Other materials found in these countries, including bauxite, platinum, copper, graphite and lithium, are used to power green technologies, such as hydrogen, wind turbines and solar panels.

Junker says companies should stop mining in areas important for apes and instead focus on recycling these critical materials from waste. “There’s huge potential in reusing metals,” she says. “We simply need to consume more sustainably. Then it will be possible to leave at least some of the areas intact that are very important for great apes.”

She also calls for mining companies to make public biodiversity assessments of potential mining sites. “Greater transparency is the first step.”

Journal reference:

Science Advances

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COP28: Energy transition may cut oil-producing states’ revenue by 60% /article/2405859-cop28-energy-transition-may-cut-oil-producing-states-revenue-by-60/?utm_campaign=RSS|NSNS&utm_content=africa&utm_medium=RSS&utm_source=NSNS Fri, 01 Dec 2023 00:01:37 +0000 /?post_type=article&p=2405859 Oil field in Venezuela
An oil pumpjack in Venezuela
Gaby Oraa/Bloomberg via Getty Images
More than 20 countries dependent on oil and gas revenues could see these sources of funds cut in half by the transition to clean energy. Such an outcome could have disastrous consequences for workers and governments in these “petrostates” without international support to help manage the transition away from fossil fuels. “Many of these states are quite fragile,” says at Carbon Tracker, a think tank in the UK. “To lose such a core source of their revenue would have quite dangerous implications for them domestically.” Prince and his colleagues at how the energy transition would affect 40 petrostates that rely on oil and gas revenues to balance their budgets. In nearly half of these countries, oil and gas make up over 40 per cent of government revenue, and several are even more dependent. In Venezuela, Iraq and Turkmenistan, oil and gas make up nearly 100 per cent of federal revenue. Under a moderately fast transition to clean energy based on existing pledges made by countries attending COP28, the researchers found 28 of the petrostates would lose more than half of their oil and gas revenue by 2040, leading to a collective shortfall of $8 trillion. A more rapid transition would have an even greater effect. Nine of these countries are exceptionally vulnerable, standing to lose over 60 per cent of their total revenue – not just oil and gas dollars – by 2040. Of those countries, five are in Africa – including Nigeria, which has a population of more than 200 million people. The researchers also identified six African countries – including Uganda, Senegal and Mozambique – as “emerging petrostates”, which risk losing money on fossil fuel infrastructure they are just beginning to build. “That’s a huge investment to be putting down at a time when the International Energy Agency is projecting a peak in demand for fossil fuels,” says Prince. “The payback period is really, really long.” The loss of that revenue and growing debt could destabilise governments and leave communities and workers in the fossil fuel industry without livelihoods, says at the International Institute for Sustainable Development, a think tank headquartered in Canada. “That could lead to some really dire consequences for people,” she says, comparing it to the economic devastation after the closure of coal mines in the UK. This dynamic is already shaping negotiations at the COP28 climate summit currently underway in Dubai, United Arab Emirates. The host country is itself at risk of losing over half its oil and gas revenue. The future of fossil fuels is a central focus of the talks, with some countries pushing for a “phase-out” of oil, gas and coalto meet climate targets and others favouring weaker language. During the first day of talks on 30 November, the African Group of countries called strongly for more support. The group said its backing for any language on a fossil fuel phase-out was contingent on the proposal being “just, equitable and taking a differentiated approach”, says Jones, who attended the meeting. “While we are aware of the urgent need to mitigate fossil fuel use, there must be an equitable solution to the problem of phasing out fossil fuel production and consumption globally,” the African Group said in an earlier . Jones says support for vulnerable petrostates could resemble launched at COP26 in Glasgow that encouraged high-income countries to aid countries dependent on coal. Those programmes aimed to help the coal-dependent countries invest in clean energy, diversify their economies and retrain workers who lose jobs. “We have yet to see how well they will succeed, but they could become a model for countries transitioning off oil and gas,” she says. Fossil fuels are likely to play an even bigger and more tumultuous role at COP28 given an early agreement among countries on the contentious issue of loss and damage funding. “I’m absolutely certain the drama will continue to the last possible second,” says Jones.]]>
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Do honeyguides really help honey badgers find bees’ nests? /article/2387981-do-honeyguides-really-help-honey-badgers-find-bees-nests/?utm_campaign=RSS|NSNS&utm_content=africa&utm_medium=RSS&utm_source=NSNS Fri, 18 Aug 2023 11:00:31 +0000 /?post_type=article&p=2387981 2387981 City in Sierra Leone covers buildings in mirrors to fight extreme heat /article/2375769-city-in-sierra-leone-covers-buildings-in-mirrors-to-fight-extreme-heat/?utm_campaign=RSS|NSNS&utm_content=africa&utm_medium=RSS&utm_source=NSNS Sat, 03 Jun 2023 08:00:12 +0000 /?post_type=article&p=2375769 2375769 Wild African primates have flame retardants in their faeces /article/2375241-wild-african-primates-have-flame-retardants-in-their-faeces/?utm_campaign=RSS|NSNS&utm_content=africa&utm_medium=RSS&utm_source=NSNS Tue, 23 May 2023 23:01:59 +0000 /?post_type=article&p=2375241
Dozens of pollutants show up in the droppings of chimpanzees and three other primate species
Danita Delimont on Offset/Shutterstock

Primates living in Uganda have 97 chemical pollutants in their digestive tract, some of which are linked to hormonal changes in females and young primates.

Chemical pollutants have reached every corner of our planet, making exposure to these often-harmful substances in air, food and water all but unavoidable for both humans and wildlife. To find out how these are impacting wild primates, researchers used a minimally invasive sampling method: collecting droppings.

Over two months in 2017, at Indiana University and her colleagues collected a total of 71 faecal samples from chimpanzees (Pan troglodytes), olive baboons (Papio anubis), red colobus (Piliocolobus tephrosceles) and red-tailed monkeys (Cercopithecus ascanius) in Uganda’s Kibale National Park.

The researchers tested the faeces using chemical analyses and found 97 pollutants, most of which are known to disrupt how hormones function in mammals. Pesticides and flame retardants, both present in the samples, are examples of such pollutants.

The team also tested hormone levels. Across all species, females that had a higher concentration of pesticides in their faeces were more likely to have higher levels of cortisol – a stress hormone that helps regulate metabolism and the immune system. The researchers found a similar pattern in young primates, where greater concentrations of flame retardants in faeces were associated with higher cortisol and decreased levels of the reproductive hormone oestradiol.

“Our results showing effects in juveniles are especially concerning,” says Steiniche, because early exposure to these chemicals during development can have life-long effects. She says the team will need to monitor the primates over the long term to see how these toxins impact their growth and reproduction.

This is a wake-up call to those that view national parks as places free from human influence.“I think we still tend to have an idealised image of wild primates living in beautiful, undisturbed habitats, but the unfortunate reality is that even protected areas are not buffered from the impacts of pollution,” says Steiniche.

Journal reference:

Biology Letters

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Ghana is the first country to approve highly effective malaria vaccine /article/2369067-ghana-is-the-first-country-to-approve-highly-effective-malaria-vaccine/?utm_campaign=RSS|NSNS&utm_content=africa&utm_medium=RSS&utm_source=NSNS Thu, 13 Apr 2023 19:36:08 +0000 /?post_type=article&p=2369067
A nurse administering a vaccine to a child in Ghana in 2019
AFP via Getty Images
Ghana is the first country to approve a new, highly effective malaria vaccine called R21/Matrix-M. The decision marks a milestone in the efforts to combat a disease that killed in 2021, most of them young children. The country’s Food and Drugs Authority authorised the shot on 13 April for children between the ages of 3 and 5 years old – the age group most vulnerable to dying from malaria in areas with high transmission rates. A majority of countries in Africa, including Ghana, account for 95 per cent of all malaria cases worldwide, and 96 per cent of deaths. Children under 5 account for 80 per cent of deaths in the region, according to the World Health Organization (WHO). Immunisation with the recently approved vaccine involves three primary doses followed by a booster shot one year later. While the vaccine’s phase III trial is still ongoing, an earlier phase II trial conducted in 2019 found it was 77 per cent effective at preventing infection. The only other approved malaria vaccine – Mosquirix, manufactured by UK pharmaceutical company GSK – is about 30 per cent effective at protecting against severe illness. R21/Matrix-M is the first vaccine to exceed the WHO’s malaria vaccine efficacy goal of . The WHO has not yet approved it, but according the , the organisation is reviewing data from the ongoing phase III trial involving 4800 children. The drug’s developer, the University of Oxford, is expected to report data on that trial later this year. The drug’s manufacturer, the Serum Institute of India, said in that it has the capacity to produce more than 200 million doses of the drug annually – significantly more than the yearly doses of Mosquirix promised by GSK. “Malaria is a life-threatening disease that disproportionately affects the most vulnerable populations in our society and remains a leading cause of death in childhood,” said at the Serum Institute of India in a press release. “The licensure of the R21/Matrix-M for use in Ghana is a significant milestone in our efforts to combat malaria worldwide.”
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Fungus that kills frogs and salamanders is rapidly spreading in Africa /article/2364373-fungus-that-kills-frogs-and-salamanders-is-rapidly-spreading-in-africa/?utm_campaign=RSS|NSNS&utm_content=africa&utm_medium=RSS&utm_source=NSNS Wed, 15 Mar 2023 05:00:39 +0000 /?post_type=article&p=2364373
Cardioglossa melanogaster, a species of African frog
Cardioglossa melanogaster, a species of African frog
David C. Blackburn

A deadly fungus that feeds on the skin of frogs and other amphibians has been rapidly spreading under the radar in Africa. Batrachochytrium dendrobatidis – Bd for short has surged on the continent in the last two decades, raising concerns it could decimate amphibian populations in Africa as it has elsewhere in the world.

Bd causes a disease called chytridiomycosis, which leads to heart failure in amphibians and has been blamed for dramatic population collapses in the Americas and Australia. “We’re talking about hundreds of species that have been driven to or near extinction by one single pathogen,” says at San Francisco State University.

Researchers think Bd originated in Asia, reaching every continent except Antarctica by the late 1900s. Yet its impact in Africa has remained relatively unexplored. Previous research suggests it has been on the continent since the 1930s, albeit at low levels. Some studies hint at higher infection rates more recently, but that could just be an artefact of researchers looking for Bd more now than in the past.

To learn more, Vredenburg and his colleagues turned to museum collections of amphibians. Fungi and other parasites often get preserved along with the animals they inhabit, which allows researchers to use museum specimens for studying the history of infectious diseases.

The team took skin swabs from nearly 3000 specimens collected in Africa over the past century. They also tested the skin of 1651 live amphibians found in the wild, and gathered thousands of additional records from other studies of specimens collected between 1852 and 2017.

Combining all this information, they found that Bd kept a low profile in Africa during the 1900s, consistently appearing in less than 5 per cent of animals tested. But that changed at the turn of the century, with prevalence soaring to around 20 percent across the continent in the early 2000s.

It isn’t clear what caused the increase, but one possible explanation is that trade and the associated movement of people and cargo spread Bd into new areas –as happened previously in other parts of the world, says Vredenburg.

The team has collected “an impressive amount of new data” to complement existing research, says at Harvard University’s Museum of Comparative Zoology. She says that many of the regions that show increases in Bd have also experienced declines in their amphibian populations – something the researchers suggest is no coincidence.

In Cameroon, for example, where the team’s data showed Bd prevalence hitting nearly 40 percent in the 2010s, numbers of once-common amphibians such as puddle frogs and long-fingered frogs have been falling rapidly.

The researchers also used the trends they found, along with existing data on Bd’s preferred climate and hosts, to predict where the fungus might go next. Parts of western Africa that have so far had no reports of chytridiomycosis could be particularly at risk, they showed.

at the US Forest Service says she is pleased to see this kind of risk assessment applied to Bd in Africa. “These are tools that managers can use to identify the most important areas that might be needed for conservation planning… to prevent any further catastrophes for vulnerable species.”

Vredenburg says he hopes the findings will encourage more research on Africa’s amphibians. These animals are “highly understudied”, he says. “There’s probably a lot we could do [to help them] if we had more information.”

Journal reference:

Frontiers in Conservation Science


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Marburg virus: What you need to know about the disease outbreak /article/2359905-marburg-virus-what-you-need-to-know-about-the-disease-outbreak/?utm_campaign=RSS|NSNS&utm_content=africa&utm_medium=RSS&utm_source=NSNS Wed, 15 Feb 2023 22:18:06 +0000 /?post_type=article&p=2359905 2JK2T3W Illustration of the Marburg virus, a tubular RNA (ribonucleic acid) virus which belongs to the Filoviridae family. It is responsible for Marburg haemorrhagic fever in humans. Symptoms includefever, muscle pain, rash, diarrhoea and haemorrhage.
An illustration of the Marburg virus
Science Photo Library / Alamy Stock Photo
Two suspected cases of Marburg disease have been detected in Cameroon. This comes days after an outbreak was confirmed in neighbouring Equatorial Guinea – the country’s first such outbreak – after a recently deceased person tested positive for the disease. This is the first outbreak of the highly transmissible virus since June 2022 when health officials in Ghana . Officials suspect at least eight other people in Equatorial Guinea have died from the virus. An additional 16 most likely have the condition after exhibiting symptoms including fever, fatigue and blood-stained vomit, and 21 other people who came into contact with them are isolating at home, said at the World Health Organization (WHO), in an emergency meeting on 14 February. “Thanks to the rapid and decisive action by the Equatorial Guinean authorities in confirming the disease, emergency response can get to full steam quickly so that we save lives and halt the virus as soon as possible,” said , WHO’s regional director for Africa, during the meeting. The WHO is working with the government of Equatorial Guinea to respond to the outbreak and has deployed experts in epidemiology, clinical care and disease prevention to the country. It is also assisting officials in Cameroon and Gabon to prepare for rapidly detecting, isolating and providing care to people who may contract Marburg virus. About of people with Marburg virus die from the disease, though fatality rates can range from 24 to 88 per cent depending on the virus strain. Marburg virus belongs to the same family of viruses as Ebola and causes similar symptoms such as severe fatigue, headache and haemorrhaging. Serious bleeding typically occurs a week into illness, with blood frequently appearing in vomit and diarrhoea. Bleeding from the nose, gums and vagina is also common. Outbreaks tend to start when someone contracts the virus from prolonged exposure to fruit bats, . It then spreads from person to person through direct contact with bodily fluids or contaminated surfaces – it is not airborne. “The people at the highest risk include family members and hospital staff who care for patients infected with Marburg virus,” says at Northwell Health in New York. The risk of the virus spreading to countries outside of Africa, such as the US and UK, is extremely low, he says. There is no vaccine or approved treatment for Marburg virus, although staying hydrated through drinking or receiving fluids intravenously improves survival. Attendees at the WHO meeting discussed potential vaccine candidates, and three drug developers said they may be able to make enough doses to test vaccines in the current outbreak. The WHO and Equatorial Guinea officials are also in discussions about potentially testing experimental therapeutics in the region. “Any decision on trials of [Marburg virus] vaccines and therapeutics will be made by national authorities and researchers in Equatorial Guinea,” said Ghebreyesus. “In the meantime, WHO is convening the vaccine prioritisation committee to identify which candidate vaccines should be evaluated first and taking steps to prepare for potential trials.” Sign up to our free Health Check newsletter for a round-up of all the health and fitness news you need to know, every Saturday ]]>
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