The question that is on the minds of many people around the world is the debate between natural causes and human activities that are the main cause of negative changes in the global climate. Natural causes such as volcanic eruptions, changes in solar radiation, and observed shifts in ocean currents are contributing to global climate change. Furthermore, human activities such as the use of fossil fuels and cutting down trees [forests] to create land for cultivation and rare livestock influence climate change. Human activities carried out influence the global climate and natural causes that have led to global warming in the atmosphere (Oxlade, 2003). Human activities undertaken such as burning fossils release some greenhouse gases such as carbon dioxide, methane and nitrous oxide into the atmosphere. The greenhouse effect is created in our atmosphere. When the sun's energy heats the Earth by warming it, our planet radiates some of this heat that was warming the surface back into outer space. Some of the gases that have accumulated in the atmosphere behave like glass in a greenhouse, allowing the sun's heat to enter without escaping and becoming trapped. Some greenhouse gases exist, but lately human activities are releasing high levels of other greenhouse gases, thus increasing the greenhouse effect (Haldar, 2011). The world's top scientists in the field of climate have come to a common conclusion that there is global warming all over the world. They believe the cause of global warming is due to high levels of greenhouse gases released into the Earth's atmosphere by human activities d...... middle of paper ......eaten to escape the Earth and become trapped in the atmosphere causing global warming. This leads to human-induced change in the global climate. Works CitedArcher, D. (2012). Global warming: understanding the forecast. Hoboken, NJ: John Wiley & Sons.Haldar, I. (2011). Global warming: causes and consequences. New Delhi: Mental MelodiesHoughton, J. T. (2004). Global warming: the complete briefing. Cambridge, UK: University of Cambridge. Karling, H. M. (2004). Global climate change revisited. Commack NY: Nova Science Publishers. Mantua, NJ (1999). The Pacific Decadal Oscillation and climate predictions for North America. Climate Risk Solutions, 1(1), 10-13.Oxlade, C. (2003). Global warming. Mankato, MN: Bridgestone Books.Silverstein, A., Silverstein, V. B., & Nunn, L. S. (2009). Global warming. Minneapolis, Minnesota: Twenty-First Century Books.
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