logo
How Africa should adapt to climate change

How Africa should adapt to climate change

Mail & Guardian16-05-2025

For Africa, this could be disastrous.
Africa is getting the short end of the stick as climate change is tightening its grip on the continent, although it has only contributed about 3% (at most) of global carbon emissions since the Industrial Revolution. Africa is the most vulnerable continent to the effects of climate change, with droughts, floods, extreme heatwaves and shrinking forests and vegetation causing widespread devastation.
Irregular weather patterns mean that predicting storms and other weather-related phenomena is becoming increasingly difficult. The situation is further exacerbated by the fact that the planet's global average temperature exceeded the 1.6-degree Celsius warming threshold above pre-industrial levels in 2024, which is higher than the target set out in the Paris Agreement.
For Africa, this could be disastrous. It is estimated that climate change could force 5% of Africa's population, or 113 million people – more than the populations of Egypt, the Democratic Republic of the Congo, Tanzania and South Africa – to leave their homes by 2050. Furthermore, adapting to climate change is expected to cost between US $30 billion and $50 billion a year over the next decade, equating to 2%-3% of Africa's GDP.
On Monday, 12 April, the World Meteorological Organisation published its State of the Climate in Africa 2024 report, stating: 'Extreme weather and climate change impacts are hitting every single aspect of socio-economic development in Africa and exacerbating hunger, insecurity and displacement.'
Recent severe floods in South Sudan, which destroyed both livestock and livelihoods, are testament to this.
The report also states that this has been Africa's warmest decade on record, that sea surface temperatures have reached record highs, and that droughts and floods will continue to wreak havoc on lives and livelihoods. It concludes that early warnings and climate adaptation must be scaled up.
Dr Henno Havenga of the Climatology Research Group at the North-West University (NWU) in South Africa, agrees.
'My advice to policymakers on the continent is to invest in early warning systems and technologies, because climate change will continue to manifest itself in extreme weather events. While Africa is generally addressing the climate change dilemma with enough urgency at a policy level, this is not the case at a practical level. Early warning systems provide more than a tenfold return on investment. Just 24 hours' notice of an impending hazardous event can reduce the ensuing damage by 30%. According to the Global Commission on Adaptation, investing US $800 million in such systems in developing countries could prevent losses totalling between US $3 billion and $16 billion each year,' he explains.
Although the forecast is bleak, Havenga warns against getting ahead of ourselves.
'We should be careful with our predictions, as they don't take into account human intuition and other technological developments. The only thing we can control is the here and now, so our focus should be on early warning systems such as weather stations, radar and short-term forecasts.'
While Africa should increase its fiscal efforts to adapt to climate change, Havenga notes that human ingenuity provides a silver lining to this very dark cloud.

Orange background

Try Our AI Features

Explore what Daily8 AI can do for you:

Comments

No comments yet...

Related Articles

Beyond the bin: Rethinking bioplastic waste for a circular future
Beyond the bin: Rethinking bioplastic waste for a circular future

Mail & Guardian

timea day ago

  • Mail & Guardian

Beyond the bin: Rethinking bioplastic waste for a circular future

Bioplastics are made from renewable sources, which sounds ideal, but some are compostable or biodegradable only under certain conditions. Now Stellenbosch University has found that enzymes may be the solution.. Photo: Sustainable Seas Trust Plastic is everywhere. From packaging our food to building our homes and medical equipment, we've come to rely on it for nearly everything. But our dependence on plastic has come at a cost that the environment can no longer bear. We now know that plastic pollution is choking our oceans, polluting soils, harming wildlife, and posing a threat to human health. That's why this One solution that has garnered considerable attention is bioplastics. These materials resemble regular plastics in appearance and function but are made from renewable sources, such as corn or sugarcane, and often are certified as biodegradable or compostable. It sounds like a dream: plastic without the pollution. But the reality is more complicated. Not all bioplastics are created equal. Some are biodegradable, meaning they can break down naturally, but only under specific conditions. Others are compostable, but only in large-scale industrial composting facilities, not your backyard compost heap. Still others are bio-based versions of conventional plastics and don't degrade at all. Another key issue is that evidence suggests certifications are not aligned with real-world outcomes. Authorities are now addressing this through a review process, specifically to bring the EN13432 compostable certification — a European standard that defines the requirements for packaging recoverable through composting and biodegradation — closer in line with real-world end-of-life scenarios. The bottom line? These materials are often misunderstood by consumers, companies and even governments. Many people assume that tossing a bioplastic item into nature or a regular bin is fine, but without the right conditions, most of these materials don't degrade within the timeframes for which they were certified. Even worse, if they're sent to waste management facilities already processing other waste streams, such as PET recycling facilities that handle polyethylene terephthalate — a strong and durable plastic — they can disrupt and jeopardise these processes. Above all, when bioplastics are mismanaged, we lose valuable carbon that could have been recovered and reused, thereby undermining the very purpose for which these materials were created. The truth is that our waste systems are not designed to handle bioplastics, at least not now and not at scale. Take Italy, for example. The country has made significant progress in encouraging the use of bioplastics, even mandating their use for shopping bags, takeaway containers and the collection of organic waste. These bioplastics are legally required to be sent to organic waste management facilities, such as composters and anaerobic digestion plants. Despite good intentions, much of the bioplastic-containing waste is pulled out at the start of the treatment process, along with other large or 'unusual' items, and sent to incineration instead. Why? Because old treatment plants weren't designed to handle large quantities of bioplastics. This leads the facilities to believe that the risk of disrupting their processes is just too high to treat bioplastics properly. The problem isn't with bioplastics themselves; they can and should be a big part of the portfolio of solutions to combat plastic pollution. It's that existing waste management systems weren't built around them. Moreover, in the developing world, most cities lack proper industrial composting or anaerobic digestion facilities. There's little public awareness on how to dispose of bioplastics correctly. And our recycling technologies haven't caught up with the complexity of these new materials. As a result, the promise of bioplastics is falling short. But it doesn't have to be this way. At This means that less bioplastic waste is sent to landfills or incinerators, but also that we get as much value as possible from bioplastic materials before they are composted. It's a system designed not just to clean up plastic, but to recapture carbon — the most valuable currency in the world — and keep it cycling in the economy where it belongs. Of course, new technologies are only part of the solution. Public education is just as important. Most people still don't understand the difference between biodegradable and compostable, or how to identify a bioplastic in the first place. Clear labelling, public awareness, consistent regulations and accessible disposal systems are essential. It's also time for governments to step up. There is a need for investment in composting and recycling infrastructure, as well as extended producer responsibility laws that hold companies accountable for the waste their products generate. Additionally, incentives are necessary to encourage better product design and effective product management after use. Crucially, we must be honest about where bioplastics make the most sense. They're great for short-lived, disposable items, such as food packaging or compostable liners, where collection and treatment can be controlled. But they're not a blanket replacement for all plastic. In some cases, reusable options or better recycling systems offer more environmental benefits. Bioplastics won't fix our waste crisis overnight. They're not a silver bullet. But, with innovative design, responsible production, as well as proper disposal and waste management systems, they can be part of a much-needed shift toward circular, sustainable materials. And that's the future we need. One where resources aren't wasted, ecosystems aren't harmed, and people, businesses and governments work together to protect the only home we have. Consumers, too, have a role to play. Start by reading labels carefully. If something is labelled 'compostable,' it usually means it needs the high heat and controlled conditions of an industrial composting facility — not your backyard bin. So, compost carefully, and where possible, check if your local waste system accepts compostable plastics. If not, advocate for better infrastructure. Try to reduce single-use items altogether and support companies developing genuinely sustainable alternatives. Every action counts. When we work together, scientists, citizens, companies and cities, we can shape a future where waste is not just managed but transformed into a resource. Dominique Rocher is a co-tutelage PhD researcher at Stellenbosch University (SU) and the University of Padova. Dr Wessel Myburgh is a post-doctoral researcher at SU and the University of Padova. They are co-founders of Urobo Biotech, a waste-to-value spinout focused on enzymatic solutions for bioplastic-rich waste streams .

Breakthrough research finds two new breast cancer genes in black women in South Africa
Breakthrough research finds two new breast cancer genes in black women in South Africa

Mail & Guardian

time29-05-2025

  • Mail & Guardian

Breakthrough research finds two new breast cancer genes in black women in South Africa

In a breakthrough study, researchers at the University of the Witswatersrand have discovered two breast cancer genes that occur in black South African women, paving the way for the development of novel treatments for the African demographic. (AFP) In a breakthrough study, researchers at the University of the Witswatersrand have discovered two The genome-wide association study (GWAS) of breast cancer was the first of its kind to be done on African women living on the continent, and led to the discovery of high-risk gene mutations in two from Soweto, from a sample size of 2 485 afflicted with breast cancer. 'Despite how many studies have been done on breast cancer, this is the first time we found that these particular mutations in these genes are associated with breast cancer,' said Mahtaab Hayat, the lead author of the study. 'It sort of alludes to the fact that results from other populations, or non-African populations can't be transferred, or can't be said to do the same thing in African populations.' Breast cancer was the most commonly diagnosed cancer among women, making up 23.2% of all female cancer cases — significantly higher than cervical cancer at 15.9% and colorectal cancer at 4.5%. Together, these top three cancers accounted for 43.5% of all cancers diagnosed in women, according to a The Stats SA report also shows that in 2019 breast cancer incidence was the highest among white women at 92.02 per 100 000 females, followed by Indian/Asian females at 53.39 and coloured females at 50.01. Black African females had the lowest breast cancer incidence rate at 21.56 per 100 000 females. 'These differences highlight substantial ethnic variation in breast cancer incidence within the country. Despite having the lowest breast cancer incidence, blacks and coloureds had the highest mortality to incidence ratio as compared with Indian/Asians and whites, which suggests a worst survival rate for black and colored population,' said Jean-Tristan Brandenburg, the co-author of the study. Breast cancer GWAS studies have been in existence for nearly 20 years, and findings have been widely published, enabling researchers to understand the cancer genetics and to develop tools and treatments to manage the disease, but the African population has been largely excluded from these studies, Brandenburg said. 'Most studies involving individuals of African ancestry have focused on African American cohorts — populations whose history, environment, and genetic background differ significantly from those living in sub-Saharan Africa, where environmental, lifestyle and genetic diversity is higher.' Inadequate funding for 'Scientists who are doing these GWAS studies didn't realise that the genomes are so different and that they wouldn't be able to apply non-African results to African results in sub-Saharan African universities [because] they don't have funding to be able to do this — they don't have the capacity to be able to do these sorts of studies, either,' she said. 'One of the hurdles we also have to cross is being able to secure funding and also have the appropriate scientists who have experience in this sort of field to be able to do the studies.' The African continent needs to invest in more capacity building to train future scientists, so that it does not lag behind, she added. The current breast cancer treatments in South Africa include a combination of surgery, breast reconstruction, chemotherapy and radiotherapy, and among the black population, mastectomy is often the primary treatment option, said Brandenburg. He added that research shows there are still significant disparities in breast cancer screening, which lead to delayed diagnosis among black patients, although targeted therapies may become possible if newly identified genes are shown to have a significant effect on the cancer. 'While our current findings primarily identify genetic variants with small effects, they still contribute meaningfully to the overall understanding of breast cancer genetics,' Brandenburg said. The researchers said they would expand their sample size to include African women from other countries to better understand the genetic architecture of breast cancer across the diverse ancestries and environmental contexts in Africa. 'Ultimately, such expansion is crucial for promoting equity in breast cancer research, improving risk prediction models, and enabling the development of personalised treatment strategies tailored to African populations,' Brandenburg said.

Mud and rock bury Swiss village after glacier collapse, one person missing
Mud and rock bury Swiss village after glacier collapse, one person missing

The Herald

time29-05-2025

  • The Herald

Mud and rock bury Swiss village after glacier collapse, one person missing

One person was missing, Ebener said. Officials gave no further details on the person during the press conference. Officials said millions of cubic metres of rock and soil have tumbled down since Blatten was first evacuated this month when part of the mountain behind the glacier began to crumble, sparking warnings it could bring the ice mass down with it. A video shared widely on social media showed the dramatic moment when the glacier partially collapsed, creating a huge cloud that covered part of the mountain as rock and debris came cascading down towards the village. Experts consulted by Reuters said it was difficult to assess the extent to which rising temperatures spurred by climate change had triggered the collapse because of the role the crumbling mountainside had played. Christian Huggel, a professor of environment and climate at the University of Zurich, said while various factors were at play in Blatten, it was known that local permafrost had been affected by warmer temperatures in the Alps. The loss of permafrost can negatively affect the stability of the mountain rock which is why climate change had likely played a part in the deluge, Huggel said. The extent of the damage to Blatten had no precedent in the Swiss Alps in the current or previous century, he added. The rubble of shattered wooden buildings could be seen on the flanks of the huge mass of earth in the drone footage. Buildings and infrastructure in Blatten, whose roughly 300 inhabitants were evacuated on May 19 after geologists identified the risk of an imminent avalanche of rock and ice from above, were battered by the rockslide, officials said. SRF said houses were destroyed in the village nestled in the Loetschental valley in southern Switzerland. Swiss President Karin Keller-Sutter expressed her solidarity with the local population as emergency services warned people the area was hazardous and urged them to stay away, closing off the main road into the valley. 'It's terrible to lose your home,' Keller-Sutter said on X. Reuters

DOWNLOAD THE APP

Get Started Now: Download the App

Ready to dive into the world of global news and events? Download our app today from your preferred app store and start exploring.
app-storeplay-store