The continent’s ecological assets are being liquidated without appearing on any balance sheet
By Philip Mwangangi
When Gabon’s president announced in 2021 that his country would seek payment for absorbing carbon dioxide through its vast rainforests, he exposed a fundamental flaw in how the world measures economic progress. Gabon’s forests sequester roughly 140 million tonnes of carbon annually, a service worth billions. Yet this contribution appears nowhere in the country’s GDP figures. The forests only register economically when they are cut down.
This paradox reveals a troubling truth about GDP as a metric for Africa, where natural capital constitutes between 30% and 50% of total wealth in many nations, compared with just 2% in high-income countries. The continent is being judged by a yardstick that systematically ignores its greatest assets whilst meticulously recording their destruction.
Accounting for depletion, ignoring accumulation
GDP was designed in the 1930s to measure industrial production during an era when natural resources seemed limitless. Its creator, Simon Kuznets, warned against using it as a measure of welfare. Yet it has become the dominant lens through which economic success is judged, with particularly distorting effects for resource-rich economies.
Consider the Democratic Republic of Congo, which possesses an estimated $24 trillion in untapped mineral reserves and contains half the world’s remaining tropical peatlands. These peatlands store the equivalent of three years of global carbon emissions. Under conventional GDP accounting, this extraordinary stock of natural wealth contributes virtually nothing to national prosperity. The minerals only count when extracted; the peatlands only matter when drained for agriculture.
The accounting grows more perverse when viewed dynamically. When a Kenyan farmer clears woodland to plant crops, GDP rises through increased agricultural output. The loss of the forest itself, its role in water retention, its biodiversity, and its carbon storage capacity, all fail to register. The country appears to grow richer as it actually grows poorer.
This is not a theoretical concern. Research by the World Bank suggests that several African countries have experienced negative adjusted net savings once natural capital depletion is factored in, even during periods of GDP growth. They are, in effect, consuming their patrimony whilst their national accounts record prosperity.
The missing value of intact ecosystems
Africa’s natural assets provide services that dwarf many traditional economic activities but remain unpriced and unrecorded. The Congo Basin rainforest generates rainfall that sustains agriculture across the Sahel, affecting the livelihoods of millions. Madagascar’s forests protect against cyclones and flooding, saving lives and infrastructure. The Okavango Delta supports a tourism industry worth hundreds of millions whilst filtering water and sustaining wildlife populations.
None of this productive capacity appears in GDP until it is compromised. Tourism revenues are counted, but not the ecosystem that makes tourism possible. Agricultural output is measured, but not the pollination services that enable it. The result is a measurement system that treats natural capital as infinite and free, encouraging its depletion whilst rendering its conservation economically invisible.
The pharmaceutical industry offers a stark illustration. African biodiversity has yielded treatments for malaria, hypertension, and numerous other conditions. The global market for medicines derived from natural sources exceeds $100 billion annually. Yet the forests and ecosystems that provide this genetic library appear in national accounts only when logged or cleared, never for their option value or their contribution to global medical knowledge.
Why alternatives matter now
The push for alternative measures is not academic. It has direct implications for policy and investment decisions. Countries face constant pressure to demonstrate GDP growth to attract capital, qualify for favourable lending terms, and maintain political legitimacy. When the metric ignores natural capital, governments face powerful incentives to pursue extractive development paths that maximise short-term GDP at the expense of long-term prosperity.
Rwanda offers an instructive counterpoint. The country has pioneered payments for ecosystem services, charging tourists premium rates to visit mountain gorillas whilst investing heavily in reforestation. This approach recognises that intact ecosystems can generate sustained value. Yet Rwanda’s careful stewardship of natural assets receives less recognition in international development rankings than would a mining boom that gutted those same forests.
The distortion extends to international climate negotiations. African countries are expected to conserve forests and limit emissions, forgoing conventional development paths, whilst their sacrifice appears as economic stagnation. The opportunity cost of conservation is real and measurable. The benefits remain largely uncompensated and unrecognised.
Beyond GDP: what actually works
Several African countries are experimenting with natural capital accounting. Botswana has integrated ecosystem accounts into national planning, explicitly valuing wildlife and water resources. South Africa has developed detailed accounts for protected areas, demonstrating their economic contribution through tourism, water provision, and carbon storage. These efforts reveal substantial hidden wealth but also highlight how much is being lost.
The UN System of Environmental-Economic Accounting provides a standardised framework that several African countries have adopted. Early results are striking. Zambia’s natural capital accounts revealed that forest depletion was costing the country roughly 6% of GDP annually. This finding prompted policy reforms around forest management that would have been difficult to justify using conventional GDP measures alone.
Yet adoption remains limited, and for good reason. Natural capital accounting requires substantial technical capacity and data collection infrastructure. Many African statistical agencies lack the resources for even basic GDP measurement, let alone the complex ecological monitoring required for comprehensive natural capital accounts. International support for building this capacity has been modest relative to the scale of the challenge.
Three necessary changes
Reforming how Africa’s wealth is measured is not about abandoning GDP but about supplementing it with metrics that reflect reality. Three changes are essential. First, wealthy nations must provide technical and financial support for African countries to develop natural capital accounting systems. The data collection and analysis required are beyond the reach of many governments but well within the capacity of the international community.
Second, international financial institutions must incorporate natural capital into lending and development assessments. A country that depletes its forests for a temporary GDP boost should not be rewarded with improved credit ratings. One that invests in ecosystem conservation should not be penalised as economically stagnant.
Third, carbon markets and payments for ecosystem services must be dramatically scaled up and made more accessible. If Africa’s natural assets are to be conserved, their economic value must be realised through mechanisms other than destruction.
The irony is acute. Africa holds extraordinary natural wealth at a moment when the world desperately needs functioning ecosystems. Yet the continent is assessed by measures that treat this wealth as worthless until it is destroyed. Changing how we count is essential to changing what counts. Until natural capital appears on the balance sheet, Africa will continue failing an exam that was never designed for it to pass.
