Sources and Sectoral Trend Analysis of CO 2 Emissions Data in Nigeria Using a Modified Mann-Kendall and Change Point Detection Approaches

Ogundele Lasun Tunde, Oluyemi Okunlola (), Mohannad Alobid, István Szűcs and Yacouba Kassouri
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Ogundele Lasun Tunde: Department of Physics, University of Medical Sciences, Ondo 351104, Nigeria
Mohannad Alobid: Faculty of Economics and Business, Institute of Applied Economic Sciences, University of Debrecen, H-4032 Debrecen, Hungary
István Szűcs: Faculty of Economics and Business, Institute of Applied Economic Sciences, University of Debrecen, H-4032 Debrecen, Hungary
Yacouba Kassouri: Department of Economics and Finance, Nisantasi University, Istanbul 25370, Turkey

Energies, 2022, vol. 15, issue 3, 1-12

Abstract: In Nigeria, the high dependence on fossil fuels for energy generation and utilization in various sectors of the economy has resulted in the emission of a large quantity of carbon dioxide (CO 2 ), which is one of the criteria gaseous pollutants that is frequently encountered in the environment. The high quantity of CO 2 has adverse implications on human health and serious damaging effects on the environment. In this study, multi-decade (1971–2014) CO 2 -emissions data for Nigeria were obtained from the World Development Indicator (WDI). The data were disaggregated into various emission sources: gaseous fuel consumption (GFC), liquid fuel consumption (LFC), solid fuel consumption (SFC), transport (TRA), electricity and heat production (EHP), residential buildings and commercial and public services (RSCPS), manufacturing industries and construction (MINC), and other sectors excluding residential buildings and commercial and public services (OSEC). The analysis was conducted for a sectorial trend using a rank-based non-parametric modified Mann–Kendall (MK) statistical approach and a change point detection method. The results showed that the CO 2 emissions from TRA were significantly high, followed by LFC. The GFC, LFC, EHP, and OSEC had a positive Sen’s slope, while SFC, TRA, and MINC had a negative Sen’s slope. The trend analysis indicated multiple changes for TRA and OSEC, while other sources had a change point at a particular year. These results are useful for knowledge of CO 2 -emission sources in Nigeria and for future understanding of the trend of its emission for proper environmental planning. The severe effects of CO 2 on the atmospheric environment of Nigeria may be worsened in the future due to some major sources such as transportation services and electricity generation that are inevitable for enviable standard of living in an urban setting.

Keywords: CO 2; emission sources; WDI data; trend analysis; Mann-Kendall (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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