Gek1522 Essay
Ever since the advent of industrialization, there has been an increase in the emission of several greenhouse gases (GHG) mainly due to the burning of fossil fuels. Carbon dioxide emissions account for 80% of global warming of GHG emission, as compared with 57% in the 1980s (Lashof & Ahuja, 1990). Panwar, Kaushik & Kothari (2011) also states that excessive fossil fuel consumption will have adverse impacts on the environment, and increase threat of global climate change. Fortunately, more and more countries are starting to be aware of climate change, which comes as a result of the increase of emission of GHG. Therefore, various proposals to reduce emission of GHG have been drawn up to suggest possible solutions to reduce the impact of climate change. While all of these proposals are useful to reduce emission of GHG, some will be more practical and effective due to other problems, which may arise. One of these proposals includes developing more non-polluting renewable energy sources (RES). This is a practical way to reduce the impact of climate change as it directly reduces GHG emissions. Currently, RES supply 14% of the total world energy demand (Panwar et. al., 2011). RES includes biomass, hydropower, geothermal, solar, wind and marine energies. By harnessing energy from RES, dependence on conventional energy sources that produce GHG will be reduced. For example, solar energy is the most abundant RES and is available as both direct and indirect form. Solar energy can be used directly in solar thermal applications, or indirectly in photovoltaic systems to generate electricity. Carbon dioxide (CO2) emission mitigation potential from 1.8kWp solar pump is about 2085kg from diesel-operated pumps (Panwar et. al., 2011). Therefore, by using RES, we can directly reduce the GHG emissions by moving away from energy sources that produce GHG. This is also the most practical solution as RES are readily available and abundant all around us. What needs to be done is to
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