affecting the world economy. Causing market instability, and the market manipulation, political instability likely to take place. According to Le Van Khoa (ed., 2009, p. 100) arid recession going on strongly, Africa is the region most vulnerable before BDKH.O China, largely desertified land area km2 estimated 3,327 million, about 13 million hectares of arable endangered, about 100 million hectares of savannahs, pastures were seriously degraded. Nguyen Tho's (Sir Nicholas Stern cited in 2009) In late 2006, he took up 1 report presented to the British government. Accordingly, if global temperatures rise 2-3 degrees Celsius, the total value of the world economy will be reduced by 3%, if the temperature rises by 5% economy will decrease by 10%. If countries do not take measures against the people of global warming, the value of total world output may be reduced to 20%. The IPCC report on general economic losses due to climate change bridge. In 2005, the average carbon tax from 100 peer-review an estimated US $ 12 / ton of CO2, but in the range of -3 USD to 95 USD / tCO2. IPCC provides cost estimates this figure as a warning, "total cost estimate significantly different on the field, the area and population and very low seed damage costs because they exclude including quantitative impact. "[79] A widely publicized report on potential economic impacts of the Stern Review Nicholas Stern author. The report said that extreme weather could reduce global GDP by up to 1%, and in the worst scenario, per capita consumption worldwide could reduce the equivalent of 20%. [80] The reaction of Stern Review also each route. The methodology and conclusions have been criticized by some economists as Richard Tol, Gary Yohe, [81] Robert Mendelsohn [82] and William Nordhaus. [83] Some economists support the view of the Review as Terry Barker, [84] William Cline, [85] and Frank Ackerman. [86] According to Barker, the costs of minimizing climate change is negligible compared to the risk in the absence of mitigation actions change climate. [87] According to the UNEP (United Nations Environment Programme), economic sectors likely to face difficulties related to climate change such as banking, agriculture, transport and the Other economic area .... [88] The developing countries depend on agriculture especially be hurt by global warming. [89]
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