Environmental and Social Impacts of Economic Development

Nigeria: growth changes both places and people's lives

Nigeria is a newly emerging economy (NEE) in West Africa. Its expanding oil industry, manufacturing and services have created opportunities for economic development: growth and change that can increase employment, incomes and living standards. However, producing more goods and earning more money do not automatically make life better for everyone.

Quality of life means people's overall wellbeing. It includes health, education, housing, security and the environment in which they live. Nigeria shows how economic development can improve these conditions while also damaging ecosystems and widening differences between communities.

Oil extraction damages ecosystems and livelihoods

The Niger Delta in southern Nigeria is an important oil-producing region. Oil spills contaminate rivers, coastal waters and land, damaging both aquatic and land-based ecosystems. They can pollute water supplies, harm wildlife and reduce biodiversity—the variety of living organisms in an area.

These environmental effects become social and economic problems because many local people depend on fishing and farming. If oil damages fish stocks or soils, households lose food and income. National income from oil can therefore rise while the quality of life of a fishing or farming community declines.

In 2008 and 2009, two major oil spills devastated about 20 km² of natural swamps near Bodo in the Niger Delta. In 2015, Shell agreed to compensate the community and clean up the affected area. This illustrates both the scale of the damage and the need for companies to take responsibility; an agreement to clean up is not itself evidence that ecosystems have recovered.

Gas flaring means burning off gas associated with oil extraction. It releases pollutants that can harm health, as well as greenhouse gases that contribute to climate change. Tin mining has also polluted local water supplies and caused soil erosion. These costs extend beyond the immediate value of the resources extracted.

Industry and urban growth put pressure on land, air and water

Industrial growth brings jobs, but factories can release chemical waste and harmful gases. In Kano, Kaduna and Lagos, toxic chemicals discharged into drains and open sewers threaten human health and natural ecosystems. Waste can contaminate land, rivers and groundwater, while air pollution can affect people's breathing.

As employment opportunities attract people to cities, housing and services may struggle to keep pace. Around Lagos, industrial development and informal settlements have spread into surrounding countryside. Where sanitation and waste disposal are inadequate, sewage and rubbish pollute land and water. Traffic congestion adds vehicle emissions, including air pollutants and greenhouse gases.

Development also requires space for farms, factories, settlements and roads. Clearing forests destroys habitats. Burning vegetation releases carbon dioxide, while removing tree cover exposes soil to erosion because roots no longer hold it together and the ground has less protection from rainfall.

Commercial farming can increase production, but poorly managed land use and excessive grazing can degrade soils. In Nigeria's drier areas, these pressures contribute to desertification: land becomes less productive and more desert-like. This threatens farming livelihoods rather than providing lasting development.

Jobs and public investment can improve wellbeing

Reliable, better-paid employment gives households greater financial security. Higher disposable income—money available after taxes—can help families buy sufficient food, improve their homes and pay for healthcare and education.

Economic growth can also increase government tax revenue. This creates opportunities to invest in schools, hospitals, water supplies, sanitation and transport. Better healthcare can reduce preventable deaths; safe water and sanitation reduce exposure to disease. Education improves people's opportunities to gain skills and obtain better-paid work.

The positive and negative pathways can operate at the same time. A new industry may provide wages and tax revenue while polluting the water used by nearby communities. Assessing development means considering both pathways, rather than treating economic growth as an automatic improvement in wellbeing.

Improvements are real, but uneven

Nigeria's life expectancy increased from about 45.7 years in 1980 to 55.0 years in 2020. Its Human Development Index (HDI), which combines health, education and income, has also risen since 2005. These trends indicate improvements in overall human development, although they do not show that every person has benefited equally or that economic growth alone caused the changes.

Urban areas and southern Nigeria generally benefit more than the rural north. Urban areas have a greater share of public services and facilities: secondary-school attendance is reported at around 60% in urban areas, compared with 36% in rural areas. Better-educated people are also more likely to access the opportunities created by development.

Many people remain poor, particularly in the rural north. Limited access to safe water, sanitation, healthcare and education restricts improvements in wellbeing. Corruption can prevent public money from reaching services and communities, while pollution can undermine the livelihoods of people who receive few of the benefits of industrial growth.

Judging the overall impact

Economic development has improved opportunities and living conditions for many Nigerians, but its benefits are neither universal nor cost-free. National indicators such as life expectancy can improve while local communities suffer polluted water, damaged farmland or lost fishing incomes.

The strongest judgement is therefore that development has improved quality of life overall, but unevenly. Its long-term success depends on spreading access to jobs and public services while controlling pollution and protecting the ecosystems on which people's livelihoods depend.

Environmental impacts: Nigeria

• Niger Delta oil spills: polluted water and soils, damaged ecosystems and reduced farming and fishing incomes.
• Bodo, 2008–09: two major spills devastated about 20 km² of swamps. Shell agreed compensation and clean-up in 2015.
• Gas flaring: harmful air pollution and greenhouse-gas emissions.
• Kano, Kaduna and Lagos: industrial chemicals discharged into drains and open sewers threaten health and ecosystems.
• Lagos's expansion: countryside lost to industry and informal settlements; inadequate sanitation and waste disposal pollute land and water.
• Forest clearance and poor land management: habitat loss, soil erosion and desertification in dry areas.

Quality-of-life effects

• Better-paid jobs → higher household incomes → improved access to food, housing, healthcare and education.
• Higher tax revenue → opportunities to improve public services and infrastructure.
• Life expectancy rose from ; HDI has risen since 2005.