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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