Where drought becomes debt and flood becomes financial fragility, South Africa's Reserve Bank is learning to read the climate as an economic text. Deputy Governor Fundi Tshazibana has articulated a careful but consequential position: the bank holds no mandate to heal the environment, yet it cannot remain indifferent to the ways ecological disruption corrodes price stability and financial resilience. Through stress tests, regulatory guidance, and cautious green bond investment, the Reserve Bank is mapping the terrain where nature and monetary policy converge — not to claim territory beyond its
South Africa's Central Bank Tackles Climate Risk as Financial Stability Imperative
Climate change is a central banking problem because it destabilizes prices
Mark
So the Reserve Bank doesn't actually have climate change in its mandate, but it's treating it like it does. How does that work?
Mimi
It's about what climate change does to the things the bank is actually responsible for. Drought drives up food prices. Floods spike insurance claims. Both of those affect inflation and financial stability. The bank can't ignore them.
Luke
But that's a bit of a stretch, isn't it? The bank says climate is "implicitly" part of its mission because it affects price stability. That's not the same as having an explicit mandate.
Mimi
True. But Tshazibana is clear about the boundary. The bank isn't trying to be the climate police. It's saying: these are financial stability risks, and we have tools to measure and manage them.
Mark
What tools? What's actually happening?
Mimi
Stress tests of insurance companies with climate scenarios built in. Guidance notes on climate disclosure for banks and insurers. Conversations with 22 regulated institutions about climate risk. And investing in green bonds.
Luke
How much of the foreign exchange reserves went into green bonds?
Mimi
A small portion. Tshazibana doesn't specify the amount.
Mark
Why so cautious?
Mimi
Because South Africa's ESG bond market is still developing. More issuance will make it more liquid. Also, the bank has to stay within its investment guidelines.
Luke
So the Reserve Bank is doing real analytical work, but it's not claiming to be solving climate change.
Mimi
Exactly. Tshazibana makes the point that the green transition will displace mining workers. That's not a central bank problem to solve. That's for the labor ministry, the social development ministry, the mineral resources department.
Mark
So who's actually responsible for managing the transition?
Mimi
Everyone, in their lane. The central bank manages financial stability. Other departments manage employment, energy policy, community support.
Luke
And if they don't coordinate?
Mimi
Then you get financial shocks without the social safety net to catch people, or social disruption without financial system resilience. Both are bad.
El Pulso
- Climate shocks — droughts spiking food prices, floods driving up insurance claims — are already moving through South Africa's inflation figures and threatening the stability of its financial institutions.
- The Reserve Bank faces a tension between its narrow constitutional mandate and the sprawling economic consequences of a warming world that no central bank can simply ignore.
- In 2023 and 2024, the bank conducted its first climate-integrated stress tests of major insurers and engaged 22 regulated financial institutions on climate risk, signaling a shift from awareness to embedded oversight.
- Guidance notes on climate-related disclosures and a nascent green bond investment position mark the bank's attempt to build institutional muscle without overreaching its regulatory authority.
- The harder work — managing job losses in mining communities, coordinating the macroeconomic consequences of the energy transition — is being firmly handed back to government ministries, where Tshazibana insists it belongs.
Where drought becomes debt and flood becomes financial fragility, South Africa's Reserve Bank is learning to read the climate as an economic text. Deputy Governor Fundi Tshazibana has articulated a careful but consequential position: the bank holds no mandate to heal the environment, yet it cannot remain indifferent to the ways ecological disruption corrodes price stability and financial resilience. Through stress tests, regulatory guidance, and cautious green bond investment, the Reserve Bank is mapping the terrain where nature and monetary policy converge — not to claim territory beyond its mandate, but to defend the ground it already holds.
The South African Reserve Bank occupies an unlikely frontier: the place where a failing harvest becomes a monetary policy problem. When drought withers crops, food prices rise, inflation climbs, and the central bank — charged with keeping prices stable — finds itself reckoning with forces that originate in the sky, not the market. Deputy Governor Fundi Tshazibana has made this connection explicit, arguing that while the bank holds no mandate to fight climate change, it cannot afford to treat climate risk as someone else's concern.
South Africa's vulnerability sharpens the stakes. The country's inflation basket is heavily weighted toward food, meaning drought-driven price spikes land directly in the bank's core metrics. Insurance claims from wildfires and floods are accumulating in ways that test whether the financial sector can absorb repeated shocks. These are not hypothetical futures — they are present conditions shaping the bank's decisions.
The Reserve Bank has responded with concrete institutional steps. It ran its first climate-integrated stress tests on major insurance companies in 2023 and 2024, engaged 22 regulated financial institutions on climate risk practices, and published guidance notes on climate-related disclosures for banks and insurers. It has also placed a modest portion of its foreign exchange reserves into green bonds, a small but deliberate signal about where the market needs to grow.
Yet Tshazibana draws a firm line. The economic disruption of the energy transition — shrinking mining sectors, displaced workers, communities built around fossil fuel extraction — falls to government ministries, not the central bank. Coordinating that transition requires the kind of cross-departmental reach that monetary policy tools simply do not possess.
What has changed is not the bank's mandate but its methodology: climate stress is now woven into financial regulation and investment decisions in ways it was not before. The Reserve Bank is not positioning itself as a climate institution. It is positioning itself as a financial institution that has finally named climate change as a source of the instability it was always built to manage.
The South African Reserve Bank sits at an intersection most people never think about: the place where climate shocks become financial shocks. A drought that withers crops doesn't just affect farmers. It drives up food prices, which ripples through inflation figures, which shapes the decisions of a central bank tasked with keeping prices stable and the financial system intact. This is the terrain Fundi Tshazibana, the Reserve Bank's deputy governor, navigates daily.
The Reserve Bank's constitutional mandate is straightforward: maintain price stability and financial system stability. It does not, by its own reading, have a direct mandate to fight climate change or protect the environment. That distinction matters. But Tshazibana is clear that the bank cannot ignore climate's economic teeth. Environmental factors have price effects. Agricultural production costs rise with drought. Fossil fuel prices shift with supply disruptions. Insurance premiums climb after floods, wildfires, and other disasters. All of these feed into inflation. All of them fall within the Reserve Bank's purview.
South Africa's geography makes this concrete. The country sits in a region prone to drought. When drought strikes, food prices spike. Because food makes up a substantial share of the inflation basket that the Reserve Bank monitors, these periods have historically pushed inflation higher. The bank has also watched insurance claims mount as wildfires, floods, and other climate-related disasters accumulate. These aren't abstract risks—they're events that test whether the insurance sector, and by extension the financial system, can absorb the shock.
The Reserve Bank has begun embedding climate analysis into its core work. In 2023 and 2024, it conducted its first major stress test of South Africa's major insurance companies, with a climate component built in. Climate risk will increasingly appear in future stress-testing scenarios. The bank also engaged 22 financial institutions regulated by its Prudential Authority in 2023 to discuss climate-related risks, producing a detailed Climate Risk Practices Observation Report. The Prudential Authority issued four guidance notes on climate-related disclosures for public consultation, covering risk management and governance practices for banks and insurers. The goal is to help institutions integrate climate risk into their business strategies and management, and to disclose these risks transparently.
On the operational side, the Reserve Bank has begun investing in green bonds. It recently placed a small portion of its foreign exchange reserves into a green bond fund, within its existing Reserves Management Investment Guidelines. Tshazibana notes that South Africa's environmental, social and governance bond market is still nascent. More issuance from public and private sectors will deepen liquidity and transparency, creating a more robust market.
But Tshazibana is careful to draw a boundary around what the central bank can and should do. Climate policy is not the Reserve Bank's responsibility. The transition to cleaner energy sources will shrink certain mining activities, harming mining communities that depend on those jobs and incomes. The Department of Mineral and Petroleum Resources, alongside the social development, labour, and education ministries, will need to manage those consequences. The macroeconomic implications of the green transition—employment created by new industries, disruption in old ones—require coordination across government. A central bank, however well-intentioned, cannot do this alone.
The Reserve Bank's analytical work on climate and weather risks is not new. What is new is the explicit integration of climate stress into financial regulation and the bank's own investment decisions. The bank has the tools to identify, analyse, and manage climate-related risks to price and financial stability. It is using them. But Tshazibana's framing suggests a mature understanding: climate change is a central banking problem because it destabilizes prices and financial systems, not because central banks are the right institution to solve climate change itself.
Citas Notables
Climate policy is not the responsibility of the South African Reserve Bank. However, a central bank cannot ignore the impact of climate-related risks on the economy.— Fundi Tshazibana, deputy governor of the South African Reserve Bank
The bank's mandate is price and financial stability. It has the tools to identify, analyse and manage price and financial stability risks in the economy. This includes those that are linked to climate change.— Fundi Tshazibana
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