“Across the world, in every type of environment and region known to man, increasingly dangerous weather and devastating storms are suddenly ending the long-standing debate over whether climate change whether real or not. Not only is it real, it's here, and its effects are giving rise to a frighteningly new global phenomenon: man-made natural disaster.” BARACK OBAMA, speech, April 3, 2006. Climate change is not a theory contrary to what many believe and is in fact confirmed by important scientific agencies such as the National Oceanic and Atmospheric Administration (NOAA) and the National Aeronautics and Space Administration. (NASA) in the United States. The causes of global warming are mainly due to greenhouse gases trapped in the atmosphere and causing the reduction of the earth's ozone layer. Carbon dioxide is a greenhouse gas and, although it is a necessary component in our atmosphere as it helps plants carry out photosynthesis, an excessive amount causes the depletion of the ozone layer and therefore climate change. Carbon dioxide levels in the atmosphere have increased tremendously since the industrial revolution, which indicates that the root cause of this problem is due to anthropogenic activities. The question presented in this document is how we can aim to reduce the quantities released and what the best ways to solve this problem are. This has long been debated among scientists, businessmen, industry owners and politicians, as well as many other prominent figures in society. The four main approaches to reducing carbon dioxide in the atmosphere include: alternative energy subsidies, cap and trade, carbon taxes, and command and control regulation. We will examine and compare the effectiveness of two of these methods: The carb...... center of paper......world-carbon-emissions>.5. Plumer, Brad. "Europe's cap-and-trade program is in trouble. Can it be fixed?" The Washington Post. Np, 20 April 2013. Web. 11 March 2014. .6. Scheueneman, Tom. “A carbon tax is more feasible than a cap and trade system.” RSS. 26 July 2012. The Energy Collective. March 11, 2014 .7. Elgie, Stewart and Jennifer Wesanko. "SP Updates." Sustainable prosperity. July 24, 2013. Sustainable prosperity. March 11, 2014 .8. “Carbon tax or cap-and-trade?” David Suzuki Foundation. 09 March. 2014 .