Full Length Research Paper

Effects of climate change on labour use efficiency in Southeast, Nigeria

I. U. O Nwaiwu, D. O. Ohajianya, J. S. Orebiyi and U. C. Ibekwe

Abstract

The cataclysmic consequences of climate change on the existence of man, the flora and fauna on earth have been burning in the hearts of scientist and policy makers all over the world. This study as one of the myriads of efforts being made to understand and provide solutions on the menace is tailored to identifying the trends in climate change and the effects on labour use efficiency in southeast Nigeria. Multistage sampling technique was used to select a total of 312 cassava based food crop farmers found in the study location. Data were collected from both secondary and primary sources with the use of structured and validated questionnaire/interview schedule and by direct observation using cost route approach. Data were analysed with the use of descriptive statistical tools like mean, frequencies, percentages and frequency polygon or line graphs as appropriate. Also ordinary least square (OLS) multiple regression analytical tools and partial labour productivity as index of efficiency were used. Results show that climate element like temperature presents a statistically significant increasing trend with a trend coefficient of 1.192 and a mean of 26.7°C. Rainfall volume also shows an increasing trend but not statistically significant. Number of rain-days shows a statistically significant decreasing trend with a trend coefficient of -6.717 and mean of 141.8 days/annum. Furthermore, the result showed that climate indicators like Sunshine duration (Hss), Excessive heat or temperature (Eh), frequency or incidence of flooding (Fd) and frequency of dry spell (Ds) are statistically significant and inversely related to labour use efficiency. It was concluded that the climate is indeed changing and negatively affecting labour use efficiency which reduces agricultural productivity, and hence slowing the scope for reducing hunger and poverty in Nigeria. The government and all stakeholders should synergise to provide appropriate adaptive and mitigation strategies to ameliorate the present and potential effects of climate change.

Key words: Cataclysmic, climate change, multistage, regression, efficiency, mitigation, adaptation, productivity and labour.

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