Abstract
Climate change is now a global red light as regards the earth´s sustainability and has become the core of most international discourse. It has become a global environmental pandemic, and Nigeria is not left out from its fallout. Studies have shown that Nigeria is among the countries most affected by climate change. This paper attempts to verify if there is climatic warming or cooling across Nigeria with the help of monthly data from January 1901 to December 2020 on the mean temperatures of 37 subnationals of Nigeria. To do this, we first construct the temperature anomalies for each sub-national and then employ fractional integration to account for the data’s probable long memory feature. However, we also study for other statistical features, such as linear trends, and, as usual, employ only data on temperature anomalies. Long memory is found in all cases, and a higher number of positive time trends are detected. Thus, 29 sub-nationals show significant time trends (suggesting climate warming instead of cooling), with the values being higher again in the post-WW2 sample, suggesting that industrialization might have contributed to climate warming in Nigeria. In the post-WW2 sample, only the time trend for Akwa Ibom state is found to be insignificant. The results also indicate some degree of homogeneity in the degree of persistence across the Nigerian sub-nationals.
Presenters
Samuel Chibuzor UmehStudent, PhD in Economics, University of the Basque Country, Vizcaya, Spain
Details
Presentation Type
Paper Presentation in a Themed Session
Theme
KEYWORDS
CLIMATE CHANGE, TIME TRENDS, LONG MEMORY, TEMPERATURE ANOMALIES, NIGERIA
