In Nigeria, researchers investigated if economic growth influences environmental improvement, a concept called the Environmental Kuznets Curve (EKC). They studied how pollution changes with income growth. The study found that initially, pollution reduces with rising income, then increases, and later decreases again. Income wasn't a major factor in explaining pollution, while population density was more crucial. The research suggests that simply boosting income may not solve environmental issues, and additional environmental policies are essential. Income growth affects pollution differently in various countries, highlighting the need for tailored approaches.