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Note: change in climate derived from the HadCM3 climate model. Impacts are compared to the situation in 2080 with no climate change. The range of impacts under the SRES A2 and B2 scenarios (Nakicenovic and Swart, 2000) represents the range between different climate simulations. The figures for additional millions of people flooded in coastal floods assumes a low rate of subsidence and a low rate of population concentration in the coastal zone.

Note: change in climate derived from the HadCM3 climate model. Impacts are compared to the situation in 2080 with no climate change. The range of impacts under the SRES A2 and B2 scenarios (Nakicenovic and Swart, 2000) represents the range between different climate simulations. The figures for additional millions of people flooded in coastal floods assumes a low rate of subsidence and a low rate of population concentration in the coastal zone.

Table 20.5. Regional-scale impacts of climate change by 2080 (millions of people).

Population living in watersheds with an increase in water-resources stress (Arnell, 2004)

Increase in average annual number of coastal flood victims (Nicholls, 2004)

Additional population at risk of hunger (Parry et al., 2004)1 Figures in brackets assume maximum

Climate and socio-economic scenario: B2 A1 A2 B1 B2 A1

direct CO2-enrichment effect

Climate and socio-economic scenario: B2 A1 A2 B1 B2 A1

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