The increasing global consensus built on empirical evidence that the world is facing a threat from climate change
has sustained the feeling and belief that many countries in tropical and sub-tropical regions be more vulnerable to
the bizarre phenomenon. The situation will be most severe in Africa where information on climate change is the
poorest, technological change has been the slowest, and the domestic economies depend the most heavily on
agriculture. The study examined the relative effect of climate change on the productivity of cocoa in Nigeria. Data
employed were national aggregates of the export crop and climate variables collected from reputable secondary
sources covering 1961 – 2010. Overall, rainfall recorded a significant negative coefficient while that of temperature
was positive coefficient, implying decreasing rainfall with rising temperature. More so, rainfall and its squared
term were the only significant climatic variables influencing the productivity of cocoa. It is therefore suggested
that cocoa farmers should adopt new measures to cope with the emerging negative effect of climate change.