Karim Elgendy

In recent years much of the discussion about the impact of climate change around the world has caused a mix of anxiety and fear about the impacts this may have on human life and the environment. Many detailed studies have shown by using simulation models the impact of sea level rises on coastal cities around the world if sea level were to rise by a certain degree.  These studies showed that generally speaking, it was low lying areas and river deltas that were most vulnerable, especially when these deltas are densely populated.

Figure 1. Relative vulnerability of coastal deltas as shown by the indicative population potentially displaced by current sea-level trends to 2050 (Extreme = > 1 million; High = 1 million to 50,000; Medium = 50,000 to 5,000 (following Ericson et al.,2006). Source Nicholls, R.J., P.P. Wong, V.R. Burkett, J.O. Codignotto, J.E. Hay, R.F. McLean, S. Ragoonaden and C.D. Woodroffe, 2007

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