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Africa

Africa: Biodiversity – What Is It, and How Can We Protect It?

todayJanuary 24, 2024 2

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The UN and its global partners will grapple with the massive loss of animal and plant species, and how to avoid further extinction, at a major conference beginning 23 January. Here’s a primer on what, exactly, biodiversity is, and how the UN can help support efforts to enable nature to survive and thrive.

What does ‘biodiversity’ mean and why is it important?

In simple terms, biodiversity refers to all types of life on earth. The UN Convention on Biological Diversity (CBD), describes it as “the diversity within species, between species and of ecosystems, including plants, animals, bacteria, and fungi”. These three levels work together to create life on Earth, in all its complexity.

The diversity of species keep the global ecosystem in balance, providing everything in nature that we, as humans, need to survive including food, clean water, medicine, and shelter. Over half of global GDP is strongly dependent on nature. More than one billion people rely on forests for their livelihoods.

Biodiversity is also our strongest natural defence against climate change. Land and ocean ecosystems act as “carbon sinks”, absorbing more than half of all carbon emissions.

Because the first big push of the year to put the UN’s bold plan to protect biodiversity into practice, takes place in the Swiss capital, Bern, between 23 and 25 January.

Introducing the conference, Patricia Kameri-Mbote, Director of the UNEP Law Division, warned that the lack of coordination between the various organizations trying to protect biodiversity is a “critical challenge” that needs to be urgently overcome “as we strive for a world living in harmony with nature by 2050”. A key aim of the conference will be to solve that problem, by pulling together the various initiatives taking place across the world.

Is there a crisis?

Yes. It’s very serious, and it needs to be urgently tackled.

Starting with the natural and land sea carbon sinks mentioned above: they are being degraded: examples include the deforestation of the Amazon, and the disappearance of salt marshes and mangrove swamps which remove large amounts of carbon. The way we use the land and sea is one of the biggest drivers of biodiversity loss. Since 1990, around 420 million hectares of forest have been lost through conversion to other land uses. Agricultural expansion continues to be the main driver of deforestation, forest degradation and forest biodiversity loss.

Other major drivers of species decline include overfishing, and the introduction of invasive alien species (species that have entered and established themselves in the environment outside their natural habitat, causing the decline or even extinction of native species and negatively affecting ecosystems).

These activities, UNEP has shown, are pushing around a million species of plants and animals towards extinction. They range from the critically endangered South China tiger, and Indonesian orangutans, to supposedly “common” animals and plants, such as giraffes and parrots, as well as oak trees cacti and seaweed. This is the largest loss of life since the dinosaurs.

Combined with skyrocketing levels of pollution, the degradation of the natural habitat and biodiversity loss are having serious impacts on communities around the world. As global temperatures rise, once fertile grasslands turn to desert, and in the ocean, there are hundreds of so-called “dead zones”, where scarcely any aquatic life remains.

The loss of biodiversity affects the way an ecosystem functions, leading to species being less able to respond to changes in the environment, and making them increasingly vulnerable to natural disasters. If an ecosystem has a wide diversity of organisms, it is likely that they will not all be affected in the same way; if one species is killed off, then a similar species can take its place.

What is the Biodiversity Plan?

The Plan, officially called the Kunming-Montreal Global Biodiversity Framework, is a UN-driven landmark agreement, adopted by 196 countries to guide global action on nature through to 2030, which was hashed out at meetings in Kunming, China and Montreal, Canada, in 2022.

The aim is to address biodiversity loss, restore ecosystems and protect indigenous rights. Indigenous peoples suffer disproportionately from loss of biological diversity and environmental degradation; their lives, survival, development chances, knowledge, environment and health conditions are threatened by environmental degradation, large scale industrial activities, toxic waste, conflicts and forced migration, as well as by land-use and land-cover changes (such as deforestation for agriculture and extractives for example).

There are concrete measures to halt and reverse nature loss, including putting 30 per cent of the planet and 30 per cent of degraded ecosystems under protection by 2030 (Currently 17 percent of land and around eight per cent of marine areas are protected). The plan also contains proposals to increase finance to developing countries – a major sticking point during talks – and indigenous peoples.