Global Outlook for Ice & Snow
GDP (US$ billion)
Land area (km 2 )
Population (millions)
0 200 400 600 800 0
25 50 75 100
0 100 200 300 400
Africa
Australia
Europe
Latin America
North America
Asia
Global (total)
2 223 km 2
145 millions
US$944 billion
Figure 6C.12: Estimates of people flooded in coastal areas in the 2080s as a result of sea-level rise and for given socio-eco- nomic scenarios and protection responses . The lines represent IPCC Special Report on Emissions Scenarios (SRES) based on different world views. The differences in impacts between the SRES scenarios for the same amount of sea-level rise and pro- tection response reflect differences in exposure (population) and ability to adapt (wealth). The solid lines represent a level of ‘constant’ (no additional) protection response. The dashed and dotted lines represent the addition of protection response to different degrees. Source: Based on Nicholls and Lowe 2006 69 ; Nicholls and Tol 2006 47 Figure 6C.11: Indicative estimates of regional and global ex- posure to a uniform 1 m rise in sea level based on today’s popu- lation and economy. Source: Based on Anthoff and others 2006 1 A one-metre rise in sea level would potentially affect more land, people, and value of economic activity in Asia than in any other continent. Photo: Veer.com
Population flooded (millions/year)
1 000
100
10
1
0.1
0
0.25
0.5
0.75
1.0
Sea-level rise (m)
Degree of protection
Scenario
constant
evolving enhanced
A1/B1: population 8 billion, highest GDP/capita A2: population 14 billion, lowest GDP/capita B2: population 10 billion,
intermediate GDP/capita
CHAPTER 6C
ICE AND SEA-LEVEL CHANGE
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