Introduction
This essay will discussed one of the most controversial environmental issue climate change along with some of the facts including how people first discover that climate change does existed; as well as legitimation in climate change globally; public debate; and the way in which government response to this issue. Furthermore this paper will discuss the role of science to identify the existence of climate change. Identification and legitimation of the issue Climate change is one of the biggest environmental challenges that the world encounters. It has obvious impact on our planet causing higher temperature, shifting seasons, sea levels rising. These phenomenon are closely tide up with world’s economic as it affect businesses around the world. The British government report warned if no action is taken to control carbon emissions climate change would cost 5 to 20 percent of the annual global gross domestic product. (Climate change impacts, 2011). The United Nation’s intergovernmental Panel on Climate change published a report in 2007 regarding the discovery of Global Warming since the 20th Century. (IPCC, 2011). The possible reason for this phenomenon may be caused by human activity. The appropriate definition is explained by the IPCC, which states that climate change is “a change of climate which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periods.” (IPCC, 2012) Many countries have taken the initiative to legislate appropriate regulation regarding climate change. In 2010 a published article noted that “Qinghai” is one of the first province to establish a regulation that holds local government and state owned enterprises response in coping with climate change (Xinhuanet, 2010). The statistic have shown that “Qinghai” ‘s temperature in general has been rising by 0.35