In recent years, due to the constant change of climate, floods, droughts, landslides, and storms have frequented our earth, the only human habitat. Therefore, climate change has become one of the most important issues in many urban areas of many countries and it is a serious impact on them. There is half of the world's population in urban areas and the proportion will increase rapidly in future years. Climate change is a mean state of the climate or in its variability, continue for a long period. Because of some negative factors, many areas are suffering detrimental effects. The essay outlines three problems caused by climate change and evaluates the effectiveness of mitigation, adaptation and planning strategies in addressing these issues. The essay argues that problems caused by climate change can be improved in urban areas in the world. However, the influence of those problems cannot be easily offset.
Climate change is occurring for many various causes. Firstly, natural disasters are the one of the most serious problems facing humans today. The United Nations Environment Programme (UNDP) reports that 75% of the world's population lived in areas affected by natural disasters from 1980 to 2000 (UNDP 2004). Furthermore, floods, drought and more extreme hurricanes can lead to displaced millions of people. For example, there were terrible floods in the Yangtze Basin, China, in 1998 and 2002. In addition, sea level rise is also an important reason that will directly impact the disappearing land, agriculture production, large areas of migration and the city could be flooded.
Many large cities are located close to the coast, so these cities will probably be most affected by sea level rise. McGranahan et al. (2006 p.51) report that large urban settlements tend to choose low-lying coastal zones as their new habitats, and nearly 65% of huge cities which have over 5 million people are located in these zones. Other problems are some supplies of water resources and...
UNFPA: State of the world population, 2007: Unleashing the potential of urban growth, Chapter 5, viewed 16 July 2013
Hunt, A. & Watkiss, P. 2011, ‘Climate change impacts and adaptation in cities: a review of the literature‘, Climatic Change, vol. 104, pp. 13-49.
UNDP 2012, ‘Building Greener Cities’, Asia Pacific Human Development Resource, pp. 121-143.
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