Climate variability is the short term changes in the average weather patterns and agriculture affect each other. Climate variability and change are believed to be the greatest impediment to the realization of the first Millennium Development Goal of reducing poverty and food insecurity globally, via increased agricultural production in developing countries. Climate variability results from people’s use of energy, but its impact is manifested through changes in agro ecological conditions and climatic factors, particularly precipitation and temperature (Amikuzino, 2012).
The relationship between human exercises and climate change, including both causes and effects, has turned into a noteworthy issue of concern and investment everywhere throughout the world. Assessments and all aspects of climate change and its impacts were prepared by the World Meteorological Organization (WMO) and the United Nations Environment Program (UNEP) when these groups created the Intergovernmental Panel on Climate Change (IPCC) to formulate realistic response strategies. IPCC was initially responsible for preparing a review and recommendations on the science of cli...
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... the two great droughts of 1973 and 1984. Between these two periods, the reduction in rainfall was remarkable. In the Sahel region, the reduction in rainfall was not as strong, but was felt more acutely. This vision of course has certain limits, due to the fixed comparative periods. For the Sahelian countries, for example, the dry periods lasted from the early 1970s until the early 1990s. Rainfall has increased, although it remains highly variable (Gnisci, 2006). Ghana presents different rainfall regimes along the country from the coast in the south to the Sahelian region in north. These regimes are mainly defined by the north- and south-ward movement of the Inter-Tropical Convergence Zone, which brings the African monsoon, giving rise to the uni- and bi-modal distribution characteristic of the northern and southern part of the country, respectively (Manzanas, 2014).
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