United Bank for Africa (UBA) is stepping up its green finance efforts as climate related disruptions threaten business operations and increase costs across African markets, highlighting the growing role of commercial banks in financing resilience and the transition to more sustainable economic activity. The Nigerian banking group is using its Climate Action Week, running from 26 to 30 October 2026, to promote climate awareness and its green finance offering, which is intended to support eligible businesses investing in cleaner technologies and environmentally responsible operations.
The campaign, themed “Banking on Africa’s Climate Future”, comes as African businesses face mounting exposure to flooding, drought, changing rainfall patterns and rising temperatures. These pressures can interrupt supply chains, damage productive assets and raise spending on energy, water and infrastructure, adding uncertainty to investment decisions in economies already contending with high borrowing costs and infrastructure constraints.
According to BusinessDay, UBA is positioning green finance as part of its response to the economic consequences of climate change. The bank’s Group Managing Director and Chief Executive, Oliver Alawuba, has highlighted the effects of climate pressures on food costs, energy demand, homes and businesses. However, the bank has not publicly detailed in the report the total capital allocated to its green finance offering, the value of loans disbursed or the number of businesses reached.
That information will be important in determining the initiative’s economic reach. Announcing a green finance product does not, on its own, establish how much investment it mobilises or whether funded projects reduce emissions and strengthen resilience. Transparent reporting on loan volumes, eligible sectors, financing terms and environmental outcomes would help borrowers, investors and regulators assess its impact.
For African businesses, the financing challenge is increasingly practical. Manufacturers and retailers facing unreliable electricity may need capital for solar power, energy efficient equipment or backup systems. Agricultural enterprises may require investment in water storage, irrigation and climate-resilient production, while companies operating in flood-prone areas may need to protect buildings, equipment and transport links. Such measures can reduce exposure to disruptions, but their upfront costs can be difficult to absorb, particularly for small and medium-sized enterprises.
Banks have a direct financial interest in how these risks develop. Climate related damage can weaken borrowers’ cash flows, reduce the value of collateral and increase the likelihood of loan defaults. Agricultural lending is exposed to changing rainfall and temperature patterns, while infrastructure, property and manufacturing portfolios may face physical risks from flooding, heat and water stress. Assessing these exposures is therefore becoming part of credit-risk management rather than a separate sustainability exercise.
Green finance products could help direct capital towards investments that lower operating costs, improve resource efficiency or protect businesses against climate shocks. Their effectiveness will depend on the cost of borrowing, repayment periods, collateral requirements and the ability of businesses to demonstrate that projects meet the bank’s eligibility criteria. Without appropriate terms, smaller firms could remain excluded even as larger companies gain access to transition financing.
Nigeria’s financing needs also extend beyond individual businesses. Investment in electricity generation and distribution, transport networks, water systems and resilient agriculture will influence the cost of operating across the economy. Public budgets face competing demands, while international climate finance and private investment must be converted into projects that can be financed and implemented. Domestic banks could help bridge part of this gap, provided that viable projects, clear standards and reliable mechanisms for assessing results are available.
UBA’s Climate Action Week also includes measures within its own operations. BusinessDay reported that the bank has introduced waste-segregation bins across its offices and measures to reduce single-use plastics at its head offices. It is also using its media and digital platforms to promote recycling and responsible waste disposal, with employee-led clean-up exercises planned for 7 November in Lagos, Kano and Port Harcourt. The bank said it was preparing to join the Sustainability Professionals Institute of Nigeria to strengthen its environmental, social and governance expertise.
These activities may support internal environmental management, but their effects should be distinguished from the wider economic consequences of lending. The more material test of a green finance strategy is whether it changes the allocation of capital, helps businesses invest in cleaner or more resilient operations and produces results that can be independently measured. Reporting on financed emissions, climate risk exposure and the performance of supported projects would provide a clearer picture of progress.
The distinction matters as African financial institutions respond to growing scrutiny of their exposure to climate-sensitive sectors and their role in financing the energy transition. Banks must balance investment in lower carbon activities with the need to sustain economic development, expand electricity access and support industries that provide jobs and public revenue. In Nigeria, where energy reliability and infrastructure costs affect business competitiveness, financing that improves efficiency and resilience could deliver commercial benefits alongside environmental gains.
For UBA, expanding green finance offers a way to connect climate concerns with its core lending activities. Whether the initiative becomes a significant source of capital for African businesses will depend on the financing deployed, the accessibility of its products and the evidence that investments deliver measurable outcomes. As climate pressures increasingly affect production, infrastructure and household costs, the ability of banks to price risk and finance practical adaptation measures will have implications for both financial stability and long-term economic growth.
