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The Impact of Climate Change on Sub-Sahara Africa

Case Studies in Cameroon, Nigeria and Uganda

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Edited By Chukwuemeka Christopher Opara and Bernard Palmer Kfuban Yerima

While global warming and its consequences on humanity are being fiercely debated at the global scale, deliberate and pragmatic reflections on the subject in Sub-Sahara Africa remain muted, though this phenomenon is negatively impacting the livelihoods of her people. The unprecedented degradation of her natural resources, i.e., water, biodiversity, and soils are seen to be intricately linked to her increasing inability to meet the basic needs of her people. This book examines how global climate change impacts on Sub-Sahara Africa, the measures and strategies that would be used in facing it and actions presently implemented in combating it. A pragmatic community/state engagement synergy on climate change mitigation initiatives that rewards best practices is critical to its success. Though investments in research, technical know-how, dedicated commitment and dissemination mechanisms would be inevitable to draw the continent from the precipice, the role of regulatory enforcement mechanisms and a legal framework addressing land use rights permissible within given landscapes is seen to be central to the success of this endeavor.
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Rainfall variabilities in Sub-Sahara Africa: Oberservations and implications in Ilorin, Southwest Nigeria

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This paper examines the effects of global climate change on annual rainfall intensity in Ilorin, Southwest Nigeria. Rainfall data of 60 years (1946–2006) were collected and analyzed. Arithmetic mean and trend analysis were employed to generate monthly mean from the daily readings to determine the long-term dispersion scenario observed from the rainfall data over the years. The result shows that the start, annual intensity and end of rainfall over Ilorin did not differ while the length and amount of the rain shows variation over the area. The rain starts as between 7th March and 4th April. It was also observed that the end of rain had a late retreat in the 1940s, 1950s and 1960s, while 1970s, 1980s, 1990s and 2000s experienced early retreat of rainfall. It can, therefore, be concluded that the start, end and amount of rain experienced little variation, but the length of rain exhibited variation and this could influence the use of the rain for agriculture and for other purposes.

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