Carlos Lopes, University of Cape Town

As we approach the global annual climate change conference, COP29, the need for increased public finance from the global north to address climate adaptation in Africa has become more urgent than ever.

However, framing the finance debate solely around this need risks deepening mistrust and downplaying the scale of the challenge. The financial burden of addressing climate change, coupled with limited fiscal space, creates a precarious situation for many African countries. African countries bear no historical responsibility for causing the climate crisis. However, they rely heavily on external financing to solve climate change problems.

Unfortunately, much external climate finance comes from loans rather than grants. This only worsens Africa’s debt burden. There is also not nearly enough money being channelled to Africa to pay for climate change adaptation.

At COP29, African negotiators will undoubtedly focus on reducing dependence on debt, and improving access to finance. I’m an economist who specialises in climate change and governance, with a long background at the United Nations and the African Union. Without robust commitments from public financial institutions, Africa will continue to face the dual crises of climate vulnerability and debt.

African countries must use COP29 to tackle systemic biases that inflate risk perceptions, minimise African achievements and inflate its problems. These biases drive up borrowing costs, and worsen commodity dependence.

The climate finance gap

The African Development Bank has estimated that Africa needs between US$1.3 trillion and US$1.6 trillion in total climate financing every year between 2020 and 2030. This will enable African countries to meet their commitments to reduce greenhouse gas emissions, known as nationally determined contributions.

The Global Center for Adaptation estimates that Africa requires at least US$52.7 billion annually for adaptation every year until 2035. However, this figure could rise to US$106 billion. This is because data gaps allow for double counting of financial contributions. There is also very little transparency about the real amounts of climate finance being disbursed. Because nationally determined contributions are focused on mitigation, carbon depletion tends to be measured without accurate calculations of the amount of emissions that are captured, or carbon that is conserved.

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The United Nations Development Programme says that Africa’s nationally determined contributions mean the continent needs about US$2.8 trillion by 2030 for climate mitigation. However, Africa contributes only 4% of all greenhouse gas emissions currently. It needs funds for adaptation to adjust to climate change that is already changing the lives of many, rather than for mitigation.

But only about half of the climate finance received by Africa in 2022 was for adaptation (US$4.6 billion). The rest of the climate finance addressed mitigation or a mix of both, in line with the global north’s agenda.

Worse still, 64.5% of adaptation financing came from loans, which need to be repaid. This will increase the financial strain on African nations.

Loans versus grants for climate change adaptation

Multilateral financial institutions such as the International Monetary Fund (IMF) and the World Bank, and the Organisation for Economic Co-operation and Development through their Development Assistance Committee, handed out US$8.33 billion to Africa in 2022 for climate action. But most of this – US$5.4 billion – was loans. Only US$2.9 billion was grants, with a small fraction in equity investments.

These loans come with lower-than-market rates or extended repayment terms. But they still add to Africa’s external debt, which reached US$1.12 trillion in 2022. African countries’ debt repayments are twice what they get as climate finance.

The United Nations Framework Convention on Climate Change says developed countries are responsible for financing climate adaptation in vulnerable regions. But loans that create a huge debt burden only enrich global financial institutions at the expense of African countries.

The effects of climate change are causing unprecedented floods, drought and other disasters across Africa. Yet it is becoming more difficult for African countries to access the climate finance they need to adapt to a warming world.

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Why is the situation worsening?

First, access to climate finance remains a bureaucratic nightmare with complex application processes. There also needs to be more transparency in fund allocation. The recently established Loss and Damage Fund could assist. It is meant to channel money to countries worst affected by climate change to pay for the damage caused.

Second, the focus on reforming Bretton Woods institutions and development finance institutions is shifting attention away from the obligations developed countries have signed up for. This distracts developing nations from making reforms in trade, taxation and financial regulations that could drive more meaningful results.

Third, there is a lack of liquidity (access to fresh money) needed to propel investment or allow countries to bridge their budget deficits. African countries are forced to juggle paying for healthcare, education and infrastructure development with paying back debt. Some spend more on debt repayments than healthcare.

Increased tax efficiency and domestic savings, such as the savings maintained by pension funds, could be used. This should be the priority while the fight for better international conditions continues.

Fourth, the distinction between development finance and climate finance is becoming an impediment to progress. The conversation should move away from getting African countries to prioritise greenhouse gas emission reductions at the expense of other development priorities. Climate action is under-implemented and underfunded. The focus must be on excessive dependency on aid and rather promote market incentives to encourage the private sector to invest in climate adaptation in Africa.

Fifth, African negotiators must address the structural barriers that limit access to finance. For example, biased risk perceptions by credit rating agencies prevent African countries from securing finance. Restrictive prudential rules from the Bank for International Settlements intended to preserve international financial system integrity have proven unfavourable to the transformation of the African economies.

Sixth, Africa should make use of regional climate finance platforms and set up cross-border climate change adaptation projects that benefit more than one country.

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This will allow Africa to pool resources, coordinate demands and make it easier to negotiate better terms for climate finance. Just energy transition partnerships create an opportunity for countries to secure renewable energy funding for the transition from fossil fuel. Success will depend on effective coordination and regional solidarity in international climate negotiations.

Seventh, African countries have strong potential to use carbon markets to finance climate initiatives, provided they have control over them. Nature-based solutions can go hand in hand with reforestation, sustainable land management or conservation, while generating carbon credits. These are additional funding opportunities for climate adaptation efforts in Africa.

This moment demands bold leadership and a united front to rewrite the rules. African countries must secure the commitments and resources at COP29 that are needed to build a sustainable future.

Carlos Lopes, Professor at the Nelson Mandela School of Public Governance, University of Cape Town

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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How to make every day recycling day

(Family Features) With so many mixed messages, recycling can feel confusing, but the truth is simpler than you might think. Recycling isn’t just for today – it’s a year-round commitment to a healthier planet.

In honor of National Recycling Day, consider these facts about recycling from the experts and tips to make a difference.

Recycling Is Real
Americans recycle more than 6 billion pounds of plastic every year. Among the plastics recycled, polyethylene terephthalate (PET) remains a responsible material choice. PET is the world’s most recycled plastic, with more than 1.8 billion pounds of PET bottles and containers recovered in the U.S. annually. Since PET bottles can be made from 100% post-consumer recycled content, each recycled bottle contributes to a circular economy where materials are continuously reused instead of wasted.

Recycling PET Plastic is Better for the Environment
Countless others from academics, researchers and industry experts show plastics, such as PET specifically, often have a lower environmental impact. In fact, glass bottles produce three times the greenhouse gas emissions compared to PET bottles, and making an aluminum can produces twice the emissions, according to Life Cycle Assessment studies. Producing PET also uses less energy and water and lowers acid rain and smog potential. Using and recycling PET is a more responsible, more eco-friendly choice than banning plastic outright.

Recycling Saves Energy
Recycling PET bottles requires less energy than producing new glass bottles or aluminum cans. Every PET bottle you recycle helps conserve resources and supports a more responsible production cycle.

Not All Plastics are Created Equal
PET is a superstar among plastics because it can be recycled repeatedly without losing strength or quality. It’s also an inexpensive, lightweight and shatter-resistant package that preserves and protects the food and medicine people place in their bodies.

Recycling Can be Easy
Recycling services can be accessible, with many communities across the U.S. offering easy ways to recycle. Today more than 73% of all U.S. households have access to recycling, according to The Recycling Partnership.

By staying informed, choosing packaging that’s easily recyclable and recycling consistently, you can help build a more sustainable future every day. Visit recyclecheck.org to find out where you can recycle in your community.

5 Recycling Tips

1. Know your plastics. Look for the No. 1 recycling symbol – inside three arrows forming a triangular shape – to identify polyethylene terephthalate (PET), helping ensure your recycling efforts are impactful.
2. Recycle PET plastic packaging over bans. Choose products packaged in PET bottles where possible, as recycling PET reduces reliance on resource-heavy materials and greenhouse gas emissions.
3. See recycling as energy conservation. PET bottle recycling uses significantly less energy compared to producing new glass bottles or aluminum cans.
4. Think of recycling as an investment. Every PET container you recycle contributes to a circular economy and more sustainable world.
5. Get involved within your community. Connect with local recycling programs and stay updated on your area’s recycling guidelines by visiting recyclecheck.org.

Photo courtesy of Shutterstock

SOURCE:
Amcor Rigid Packaging

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Mahshid Ahmadi, University of Tennessee

Many human activities release pollutants into the air, water and soil. These harmful chemicals threaten the health of both people and the ecosystem. According to the World Health Organization, air pollution causes an estimated 4.2 million deaths annually.

Scientists are looking into solutions, and one potential avenue is a class of materials called photocatalysts. When triggered by light, these materials undergo chemical reactions that initial studies have shown can break down common toxic pollutants.

I am a materials science and engineering researcher at the University of Tennessee. With the help of robots and artificial intelligence, my colleagues and I are making and testing new photocatalysts with the goal of mitigating air pollution.

Breaking down pollutants

The photocatalysts work by generating charged carriers in the presence of light. These charged carriers are tiny particles that can move around and cause chemical reactions. When they come into contact with water and oxygen in the environment, they produce substances called reactive oxygen species. These highly active reactive oxygen species can bond to parts of the pollutants and then either decompose the pollutants or turn them into harmless – or even useful – products.

But some materials used in the photocatalytic process have limitations. For example, they can’t start the reaction unless the light has enough energy – infrared rays with lower energy light, or visible light, won’t trigger the reaction.

Another problem is that the charged particles involved in the reaction can recombine too quickly, which means they join back together before finishing the job. In these cases, the pollutants either do not decompose completely or the process takes a long time to accomplish.

Additionally, the surface of these photocatalysts can sometimes change during or after the photocatalytic reaction, which affects how they work and how efficient they are.

To overcome these limitations, scientists on my team are trying to develop new photocatalytic materials that work efficiently to break down pollutants. We also focus on making sure these materials are nontoxic so that our pollution-cleaning materials aren’t causing further pollution.

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Teeny tiny crystals

Scientists on my team use automated experimentation and artificial intelligence to figure out which photocatalytic materials could be the best candidates to quickly break down pollutants. We’re making and testing materials called hybrid perovskites, which are tiny crystals – they’re about a 10th the thickness of a strand of hair.

These nanocrystals are made of a blend of organic (carbon-based) and inorganic (non-carbon-based) components.

They have a few unique qualities, like their excellent light-absorbing properties, which come from how they’re structured at the atomic level. They’re tiny, but mighty. Optically, they’re amazing too – they interact with light in fascinating ways to generate a large number of tiny charge carriers and trigger photocatalytic reactions.

These materials efficiently transport electrical charges, which allows them to transport light energy and drive the chemical reactions. They’re also used to make solar panels more efficient and in LED lights, which create the vibrant displays you see on TV screens.

There are thousands of potential types of hybrid nanocrystals. So, my team wanted to figure out how to make and test as many as we can quickly, to see which are the best candidates for cleaning up toxic pollutants.

Bringing in robots

Instead of making and testing samples by hand – which takes weeks or months – we’re using smart robots, which can produce and test at least 100 different materials within an hour. These small liquid-handling robots can precisely move, mix and transfer tiny amounts of liquid from one place to another. They’re controlled by a computer that guides their acceleration and accuracy.

We also use machine learning to guide this process. Machine learning algorithms can analyze test data quickly and then learn from that data for the next set of experiments executed by the robots. These machine learning algorithms can quickly identify patterns and insights in collected data that would normally take much longer for a human eye to catch.

Our approach aims to simplify and better understand complex photocatalytic systems, helping to create new strategies and materials. By using automated experimentation guided by machine learning, we can now make these systems easier to analyze and interpret, overcoming challenges that were difficult with traditional methods.

Mahshid Ahmadi, Assistant Professor of Materials Science and Engineering, University of Tennessee

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This article is republished from The Conversation under a Creative Commons license. Read the original article.

The science section of our news blog STM Daily News provides readers with captivating and up-to-date information on the latest scientific discoveries, breakthroughs, and innovations across various fields. We offer engaging and accessible content, ensuring that readers with different levels of scientific knowledge can stay informed. Whether it’s exploring advancements in medicine, astronomy, technology, or environmental sciences, our science section strives to shed light on the intriguing world of scientific exploration and its profound impact on our daily lives. From thought-provoking articles to informative interviews with experts in the field, STM Daily News Science offers a harmonious blend of factual reporting, analysis, and exploration, making it a go-to source for science enthusiasts and curious minds alike. https://stmdailynews.com/category/science/