INTRODUCTION As a global environmental problem of concern, controversies have been presented for and against global warming. Such controversies arise from its causes as well as its effects. This is because since the first international awareness of the problem occurred in 1992 during the United Nations (UN) Earth Summit in Rio de Janeiro, different opinions have continued to grow regarding the genesis of this problem and the potential effects it poses on the planet. This international meeting saw an intellectual exchange among the many delegates regarding the best approaches that can be used to address the causes and effects of global warming. However, this issue is still controversial among many environmentalists around the world. Therefore, this essay analyzes the various controversies presented by different articles and authors regarding global warming, its main factors, the severity of the problem and the claimed consequences. GLOBAL WARMING AS A GLOBAL ENVIRONMENTAL CONCERN Being a global environmental concern, global warming has had several impacts especially on both biodiversity and climatic conditions of the planet (Elkins and Simmonds, et al., 2010). This is because current trends have shown that it affects flora and fauna due to the increase in the amount of anthropogenic gases accumulated in the atmosphere, such as neon surface air. As a result, this leads to melting of the polar ice caps, rising sea levels and other climate changes. Thus global warming poses a serious threat especially to the basic life forms of living beings on earth. Back, Russ, Liu, Inoue, Zhang, and Otto-Bliesner (2013) argue that global warming leads to increasing... .middle of paper ......l Warming: It's Not Always Greener on the Other Side of the fence. Journal of Business Ethics, 104(4), 571-587.Dos Santos, M. O. (2012). Investigating consumer knowledge about global warming based on Rogers' knowledge stage of innovation decision making. International Journal of Consumer Studies, 36(4), 385-393.Long, S., Xie, S., Zheng, X., & Liu, Q. (2014). Fast and slow responses to global warming: sea surface temperature and precipitation patterns. Journal of Climate, 27(1), 285-299.Schuldt, J.P., Konrath, S.H., and Schwarz, N. (2011). “Global warming” or “climate change”?. Public Opinion Quarterly, 75(1), 115-124. Sharpe, M. (2012). Will we stop global warming before it kills us? Challenge (05775132), 55(5), 123-124.Urpelainen, J. (2012). Global warming, irreversibility and uncertainty: a policy analysis. Global environmental policy, 12(4), 68-85.