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All these human activities are threatening the nature and at the end, we ourselves are to face the consequences and are to be blamed.
(Professor David Ukali, chairman of NEST, Nov, 2010) David Ukali’s statement explains how human activities lead to the backlash we experience in our environment today.
Climate change is one of the most serious environmental threats facing mankind worldwide.
Climate change may already be impacting Nigeria as manifested by increased flooding, delayed rains, enhanced desertification, increasing bush fires and food insecurity.
Man suffers various environmental changes as a result of inappropriate agricultural practices coupled with unscrupulous destructions of various important elements in the environment.
Climate change is perhaps the most serious environmental threat to the fight against hunger, malnutrition, disease and poverty in Africa, mainly through its impact on agricultural productivity.
The recent changes in the climate have been linked with the increase in greenhouse gases (GHG) on the atmosphere in addition to anthropogenic activities and support emissions of other artificial chlorocarbons (Olanrewaju, 2003).
Climate change is also believed to result from the effect of global warming on the environment.
Rough estimates suggest that over the next 50years or so climatic change will likely have a serious threat to meeting global food needs than any other constraints on agricultural system. Available evidence shows that climate change is global; sea level rose about 17 centimetres (6.7 inches) in the last century and the rate has doubled in the last decade, there has been a rise in the global temperature even though the 2000s witnessed a solar output decline resulting in an unusually deep solar minimum in 2007-2009, surface temperatures continue to increase, glaciers are retreating almost everywhere around the world including in the Alps, Himalayas, Andes, Rockies, Alaska and Africa, likewise its impacts but the most adverse effects will be felt mainly by developing countries, especially those in Africa, due to their low level of coping capabilities (Nwafor 2007; Jagtap 2007).
Nigeria is viewed as one of these developing countries (Odjugo, 2010).