Agu, C. S., and D. N. Obodoechi. “CO2 EMISSIONS, TEMPERATURE CHANGES, PRODUCTIVITY AND LABOUR SUPPLY: NEW EMPIRICAL EVIDENCE FROM FARMERS IN NIGERIA”. JOURNAL OF ECONOMICS AND ALLIED RESEARCH, vol. 6, no. 1, Mar. 2021, pp. 295-04, http://jearecons.com/index.php/jearecons/article/view/80.