Mesagan Urges Nigeria to Turn Oil Wealth into Green Growth

Energy economist says investment, technology, carbon markets and stronger governance can reconcile fossil-fuel development with environmental sustainability

Nigeria must use proceeds from its oil and gas resources to finance renewable energy, cleaner industrial technology and green infrastructure if it hopes to achieve sustainable economic growth without worsening environmental degradation, Professor Ekundayo Peter Mesagan has said.

Mesagan, a Professor of Energy and Environmental Economics at Pan-Atlantic University, Lagos, made the case in his 26th inaugural lecture, titled Making Lemonade From Lemons: The Fossil Energy and Sustainability Puzzle, delivered at the university on Friday, October 9, 2026.

He argued that resource-rich developing economies such as Nigeria must move beyond the conventional debate over whether fossil fuels should be retained or abandoned, towards a more strategic approach that converts the economic value of oil and gas into investments capable of reducing pollution, expanding energy access and supporting long-term prosperity.

The professor’s central argument is that fossil fuels, despite their contribution to industrialisation, government revenue and economic development, present a difficult sustainability challenge because their exploitation and consumption generate greenhouse gas emissions and other environmental pressures.

For Nigeria, where petroleum remains central to public revenue, foreign-exchange earnings and industrial policy, the challenge is particularly consequential. The country must meet its development and energy needs while managing the environmental costs of fossil-fuel dependence and preparing its economy for a global energy system increasingly shaped by decarbonisation, technological innovation and renewable power.

Rather than advocating an abrupt abandonment of oil and gas, Mesagan proposed a managed transition in which petroleum revenues finance cleaner production systems, renewable energy infrastructure, carbon-management technologies and stronger environmental regulation.

His recommendations place investment, institutional quality and economic diversification at the centre of the transition, suggesting that the ultimate value of a country’s natural resources depends not merely on how much it possesses, but on how effectively the wealth is converted into productive capacity and lasting public benefits.

Fossil fuels and the sustainability dilemma

Using the metaphor of lemons and lemonade, Mesagan described fossil fuels as valuable resources that also carry significant environmental costs.

In his framework, the economic benefits of oil, gas and coal represent the immediate value of the lemons, while the pollution and climate consequences constitute their sour aftertaste. Environmental sustainability becomes the lemonade: the outcome that can emerge when governments, businesses and societies deploy innovation, sound policy and investment to manage those costs.

The analogy provides a practical foundation for his wider argument. Fossil fuels have powered industrial development and helped transform economies, but their benefits can be undermined when extraction and consumption proceed without adequate attention to pollution, technological efficiency and long-term environmental consequences.

Mesagan traced his interest in energy and environmental economics to the tension between natural-resource abundance and development outcomes. His early research examined macroeconomic growth and development before expanding into natural resources, environmental quality, finance and the relationship between energy use and sustainability.

The lecture argues that resource abundance does not automatically guarantee economic prosperity. Weak governance, limited economic sophistication and ineffective fiscal management can prevent resource-rich countries from translating their natural endowments into broad-based development.

That argument is especially relevant to Nigeria, where the economic significance of crude oil has long coexisted with concerns about environmental damage, gas flaring, oil spills and the need to develop productive sectors beyond petroleum.

The policy question, therefore, is not simply how much oil a country can produce, but how the proceeds are invested, what economic capabilities they create and whether the resulting development can endure beyond the life of the resource.

Rising emissions sharpen the urgency

Mesagan placed the debate within the context of global efforts to address climate change under the United Nations Framework Convention on Climate Change and the 2015 Paris Agreement.

The agreement seeks to hold the increase in global average temperature to well below 2°C above pre-industrial levels while pursuing efforts to limit the increase to 1.5°C.

According to figures presented in the lecture, global fossil-fuel carbon dioxide emissions rose from approximately 22 billion tonnes in 1990 to about 39 billion tonnes in 2024. The presentation also highlights the relationship between fossil-energy consumption and rising emissions.

The lecture’s regional comparison points to Asia-Pacific as the area with the steepest increase in fossil-energy use and associated emissions, driven largely by industrialisation, manufacturing and reliance on coal. Europe, by contrast, is presented as having made greater progress in reducing emissions through renewable energy, efficiency improvements and carbon pricing.

North America continues to face emissions pressures, particularly from transport, while Africa and Latin America are experiencing growing energy use and emissions as their economies expand.

For Africa, the challenge is complicated by the need to improve access to reliable and affordable energy. A transition that ignores electricity shortages, industrial development and poverty could impose additional costs on economies that are still building the infrastructure needed to support their populations.

Mesagan’s approach recognises this tension. He argues that environmental sustainability cannot be pursued independently of economic growth, industrial development and social welfare.

The transition must therefore be designed around the realities of emerging economies rather than treated as a uniform process in which every country can immediately abandon existing energy sources at the same pace.

Investment as a bridge to cleaner production

A central contribution of Mesagan’s research, as presented in the lecture, is the role of capital investment in reducing the environmental damage associated with fossil-energy use.

He argued that investment in environmentally friendly machinery and cleaner industrial processes can help economies retain the productive benefits of energy consumption while reducing pollution.

For Nigeria, this would require a deliberate shift in the use of oil revenues. Rather than allowing petroleum earnings to support consumption and short-term fiscal priorities alone, governments should direct a portion towards renewable-energy capacity, green infrastructure and technologies that improve industrial efficiency.

The proposal has implications for both public finance and private-sector investment.

Government spending can support infrastructure, research, skills development and enabling regulations, while private capital can finance cleaner industrial equipment, new energy technologies and commercially viable environmental solutions.

Such investment would also help build domestic technological capacity. Mesagan cautioned against excessive dependence on foreign countries for green-energy technology, arguing that oil-rich nations should use part of their resource wealth to develop the skills, infrastructure and productive capabilities required to participate more fully in the emerging low-carbon economy.

The broader economic objective is to turn the energy transition into an opportunity for industrial development rather than another area of dependence on imported technology.

However, achieving that objective would require more than announcing investment commitments. Governments would need credible project selection, transparent procurement, effective implementation and measurable environmental outcomes to ensure that funds allocated to green infrastructure deliver real benefits.

Carbon capture offers another option

Mesagan also called on oil-producing countries to explore Carbon Capture, Utilisation and Storage, commonly known as CCUS.

The technology is designed to capture carbon dioxide from industrial processes or other sources and either store it or use it in applications where it can be put to productive use.

He argued that CCUS could help carbon-intensive industries reduce their emissions and enable oil-producing economies to participate more effectively in developing carbon markets.

The professor specifically suggested that existing and proposed refineries in Nigeria consider investments in carbon-management technology as part of their long-term competitiveness strategies.

He also called for greater coordination between the African Energy Bank, launched in Abuja by the African Petroleum Producers Organisation, and the Africa Carbon Markets Initiative to support the development of carbon trading across the continent.

Under Article 6 of the Paris Agreement, countries can cooperate through recognised approaches to international carbon-market mechanisms. Mesagan’s proposal reflects the possibility that well-designed carbon markets could provide additional incentives for emissions reduction.

Nevertheless, CCUS should not be treated as a substitute for renewable energy, efficiency improvements or direct emissions reduction. Its practical value would depend on the cost of deployment, the availability of suitable storage infrastructure, the integrity of carbon accounting and the extent to which captured emissions are permanently contained or productively used.

For Nigeria, these considerations would need to be assessed against competing demands for investment in electricity, transport, industrial development and basic infrastructure.

The lecture nevertheless raises a useful strategic question: whether a country that intends to continue producing petroleum can simultaneously invest in technologies that reduce the environmental burden of that production.

Gas as a transition fuel

Another major recommendation is the strategic use of natural gas as a transition fuel.

Mesagan argued that gas emits less carbon dioxide than crude oil when burned for comparable amounts of energy, making it a potential bridge while renewable-energy capacity expands.

He urged Nigeria to implement its gas-development initiatives more effectively and use gas to support the transition towards a more diversified energy mix.

The recommendation reflects the practical difficulty of replacing fossil fuels across every sector immediately, particularly in economies where reliable electricity and industrial energy remain pressing needs.

Gas could help support power generation and industrial activity during the transition, provided that its development is accompanied by appropriate environmental safeguards and credible plans for expanding cleaner alternatives.

However, the distinction between a temporary bridge and prolonged dependence is important. Methane leakage across gas production and distribution systems can undermine the climate benefits of switching from other fossil fuels. Large-scale investment in gas infrastructure can also create long-lived assets that become difficult to reconcile with future emissions targets.

Consequently, Nigeria’s gas strategy would need clear performance standards, effective monitoring and a credible timetable for scaling up renewable energy.

Mesagan’s position is best understood as a call for a managed transition rather than an argument for treating natural gas as a permanent solution to the country’s energy and environmental challenges.

Diversification must go beyond petroleum

Mesagan’s fourth recommendation is for oil-rich economies to diversify their energy sources by integrating solar, hydro and wind power into the national energy mix.

He argued that petroleum revenues should be invested periodically in renewable energy to reduce overdependence on fossil fuels.

For Nigeria, the proposal carries implications beyond environmental policy. A diversified energy system could help broaden the sources of electricity supply, create opportunities for domestic manufacturing and services, and support economic activity in communities that remain poorly served by existing infrastructure.

Yet diversification requires sustained financing and institutional coordination. Renewable projects must be supported by appropriate transmission and distribution networks, energy storage where needed, technical skills and regulatory arrangements that encourage investment.

The wider challenge is to ensure that renewable-energy development becomes part of a coherent industrial and economic strategy rather than a collection of isolated projects.

This is where Mesagan’s argument about the relationship between energy, finance and technology becomes particularly significant. Renewable energy cannot expand sustainably without access to capital, functioning financial institutions, suitable infrastructure and policies that reduce uncertainty for investors.

The transition must also be socially inclusive. Policies that reduce emissions but leave households and small businesses without affordable energy would fail to address the development challenges facing many African economies.

Governance remains the decisive variable

Perhaps the most consequential aspect of Mesagan’s lecture is its emphasis on governance.

He argued that the development difficulties confronting resource-rich countries are determined less by the mere presence of natural resources than by institutional weaknesses, limited economic complexity and poor fiscal management.

His recommendations include stronger pollution laws, carbon pricing and policy reforms capable of aligning industrial investment with environmental objectives.

This shifts the discussion from technology alone to the institutions that determine whether available solutions are adopted, financed and properly implemented.

Nigeria can invest in renewable energy, gas infrastructure and carbon-management technology, but the results will depend on policy consistency, regulatory credibility and the effective use of public resources.

Weak enforcement can allow polluting activities to continue despite the existence of environmental laws. Poorly designed subsidies and incentives can distort investment decisions, while inadequate transparency can undermine confidence in projects intended to support the transition.

Carbon pricing, where appropriately designed, can create incentives for firms to reduce emissions by attaching a cost to pollution. But its implementation must account for industrial competitiveness, household welfare and the country’s broader economic circumstances.

The lecture’s governance argument therefore deserves particular attention from policymakers. The success of an energy transition depends not only on identifying the right technologies but also on establishing institutions capable of directing investment towards measurable and durable outcomes.

A research programme with policy implications

Mesagan’s inaugural lecture also reviewed the development of his academic work and its contributions to the study of energy, finance and environmental sustainability.

He divided his research journey into four broad phases: macroeconomics, growth and development between 2014 and 2017; natural resources, the environment and development from 2018 to 2020; finance, energy and environmental sustainability between 2021 and 2023; and energy transition, technological transformation and sustainability from 2024 to 2026.

Across these areas, his research has examined the role of capital investment in pollution reduction, the relationship between financial development and environmental quality, the importance of technology and economic complexity, and the connections between energy access, poverty reduction and sustainable development.

The lecture states that he has published 69 works, comprising 61 journal articles and eight book chapters.

Among the recurring themes is the proposition that financial systems influence more than productivity and economic growth. They can also shape environmental outcomes by determining which projects receive funding, what technologies businesses adopt and how industries respond to sustainability requirements.

This has important implications for banks, institutional investors and development-finance institutions.

Financing decisions can either reinforce carbon-intensive production or accelerate the adoption of cleaner technologies. A financial system that incorporates environmental risks and rewards credible emissions-reduction investments could help direct capital towards more sustainable economic activity.

Mesagan’s research also places energy access and poverty reduction alongside environmental protection, rather than treating them as separate policy objectives.

That integrated approach is relevant to African economies, where the transition must simultaneously address electricity deficits, industrial development, employment, household welfare and environmental vulnerability.

Review: a persuasive framework, but implementation will determine its value

The strength of Mesagan’s lecture lies in its refusal to reduce the energy debate to a simplistic choice between fossil fuels and renewable energy.

By framing the issue as a question of economic transformation, he offers a more practical starting point for countries whose development prospects remain closely linked to petroleum and other natural resources.

The metaphor of making lemonade from lemons is accessible without diminishing the seriousness of the underlying issue. It captures the central economic dilemma: resources that generate income and support development can also impose costs that weaken public welfare and threaten future prosperity.

The lecture’s most valuable insight is that natural-resource wealth should be judged by the productive and institutional capabilities it creates, not merely by the revenue it generates.

This perspective brings together investment, technology, financial development and governance in a way that is particularly relevant to Nigeria.

Its emphasis on cleaner industrial machinery is important because environmental progress does not depend exclusively on replacing one energy source with another. Efficiency improvements, better production methods and stronger environmental standards can also reduce the pollution associated with existing economic activity.

Likewise, the proposal to invest petroleum revenues in renewable energy recognises that the resources driving today’s economy can help finance tomorrow’s energy system.

The discussion of carbon capture and carbon markets broadens the range of options available to industrial economies, while the treatment of gas as a transition fuel acknowledges the practical challenges of ensuring reliable and affordable energy during the shift to lower-carbon systems.

However, the lecture’s policy recommendations would benefit from a more explicit framework for implementation.

First, the proposal to allocate oil revenues to green infrastructure needs clear fiscal rules. Without transparent budgeting, project appraisal and public reporting, the commitment to sustainability could remain aspirational. A defined investment framework would help establish how much should be allocated, which projects qualify and how outcomes would be measured.

Second, the role of natural gas requires careful qualification. Although gas generally produces less carbon dioxide than coal or oil per unit of energy when burned, methane leakage and the risk of locking economies into long-lived fossil-fuel infrastructure can weaken its transitional value. Gas investment should therefore be assessed against credible emissions targets and the expansion of renewable alternatives.

Third, CCUS should be evaluated on a project-by-project basis. The technology may have a role in reducing emissions from difficult-to-abate industrial processes, but its costs, energy requirements, storage arrangements and long-term effectiveness must be established before it becomes a major policy commitment.

Fourth, renewable-energy investment needs to be connected to electricity-market reform, grid reliability, storage, local skills development and access to finance. Without these supporting conditions, new generating capacity may fail to deliver the expected economic benefits.

Finally, the lecture’s emphasis on governance deserves to be translated into measurable accountability. Stronger pollution laws and carbon pricing are useful proposals, but their effectiveness depends on monitoring, enforcement, reliable data and the willingness to apply rules consistently across industries.

These observations do not diminish the lecture’s central contribution. Rather, they identify the institutional and economic conditions under which its recommendations could produce lasting results.

*The wider significance for Nigeria”

For Nigeria, the lecture arrives at a time when energy policy must respond to several demands at once: generating revenue, expanding electricity supply, supporting industrialisation, improving household welfare and reducing environmental damage.

These objectives are sometimes presented as competing priorities. Mesagan’s framework suggests that they can be pursued together if resource revenues are invested strategically and environmental considerations are incorporated into economic planning.

The implication is that oil wealth should become a source of financing for economic transformation rather than a reason to postpone it.

Such a strategy would require cooperation among government ministries, regulators, financial institutions, energy companies, universities and development partners. It would also require a clear distinction between projects that deliver measurable environmental benefits and those that merely adopt the language of sustainability.

For businesses, the transition presents both risks and opportunities. Firms that improve energy efficiency and invest in cleaner production may become better positioned to respond to changing market expectations and environmental standards. Financial institutions, meanwhile, could play a more active role in financing technologies and infrastructure that support the transition.

For universities and research institutions, Mesagan’s lecture reinforces the need to connect academic work with practical policy decisions. Evidence on energy use, investment, pollution and development can help governments assess competing options and allocate scarce resources more effectively.

His proposed future research areas include climate finance, green-energy access, climate vulnerability, CCUS, carbon markets, renewable energy for artificial intelligence and the socioeconomic dimensions of energy storage.

These subjects point to an increasingly interconnected policy landscape in which energy, finance, technology and environmental protection cannot be considered in isolation.

An agenda for a sustainable energy future

Mesagan concluded that oil-rich developing economies can turn the challenges associated with fossil fuels into opportunities through vision, innovation and sound policy.

His recommendations call for investment in cleaner machinery, stronger domestic green-technology capacity, carbon-management systems, strategic gas deployment, renewable-energy diversification and improved environmental governance.

The wider lesson is that a successful energy transition cannot be measured by the number of renewable projects announced or the amount of oil produced. It must also be assessed by whether energy becomes more reliable and affordable, industries become more productive, pollution declines and public resources generate benefits that endure.

For Nigeria, the decisive test will be whether petroleum wealth can finance an economy that is less vulnerable to fossil-fuel dependence and better equipped to compete in a changing global marketplace.

Mesagan’s lecture provides a framework for confronting that challenge. Its enduring value will depend on the extent to which governments, businesses and financial institutions translate its ideas into transparent investment decisions, enforceable environmental standards and measurable improvements in energy access and economic welfare.

The message is clear: oil and gas can remain part of Nigeria’s development story, but their value will increasingly be determined by what the country builds with the proceeds-and how effectively it manages the environmental costs along the way.

By Innocent Eneta