ABSTRACT
There is overwhelming scientific consensus that since pre-industrial times increasing emissions of greenhouse gases (GHGs) 1 have led to a marked increase in atmospheric GHG concentrations (IPCC, 2007), causing global warming. The causes for this phenomenon, more popularly known as climate change, can be divided into two categories, namely, natural causes and those that are created by man. The natural factors responsible for climate change include the continental drift, volcanoes, ocean currents, the earth’s tilt, and comets and meteorites. The human factors include industrial wastage, use of natural resources for human consumption and habitation, population increase and the extreme reliance on the use of fossil fuels and natural gases.
