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Increasing threat of climate change is aggravating the problem of declining agricultural productivity in the face of rapid population growth. This implies that rural sustainance and food security is under threat and stress. Given that crops differ in climate requirements and economic importance, analysis of the attendant effect of climate change on specific crop remains to be adequately explored. This study uses Ricardian approach to examine the effects of climate change on maize production in Nigeria. Multistage sampling technique was employed for the study. Data were collected on 346 maize-based farming households in three different agro-ecological zones of Nigeria. Average age of the farmers and household size were 45years and 8 persons respectively. Average years of farming experience and years of schooling were 25.6 and 6.5 years respectively. The empirical results showed that maize net revenue is sensitive to climate change. Seasonal marginal impact analysis showed that increase in rainfall during rainy season increased Maize Net Revenue (MNR) in rainforest, guinea and montane savanna respectively. Marginal increase in rainfall during the dry season increased MNR in rainforest while it decreased MNR in guinea and montane savanna respectively. However, marginal increase in temperature during dry season has positive impacts on MNR in all AEZs. The predicted results using a range of climate scenarios confirm that climate change will have negative impact on maize net revenue in the future. Maize Farmers have taken adaptive measures against climate change which are changing the planting dates, changed land-use practices, mixed cropping and mixed farming. The major barriers to adaptation are inadequate credit or saving and inadequate knowledge of appropriate adaptation strategies suited for the local climate conditions.

Economic Effects of Climate Change on Maize Production and Farmers’ Adaptation Strategies in Nigeria: A Ricardian Approach