The 21st Century climate challenge

90Goalpost85 years8071.470600.7731.00.800.60050.400Goalpost25 years403020Lifeexpectancy(years).2000LifeexpectancyindexGoalpost formaximumvalueIndicatorvalueGoalpost forminimumvalueIndicatorIndexvalue1.00.900.800.700.600.500.400.300.200.1000Dimensionindex1009087.4807060504030201068.7 0.8120Adultliteracyrate(%)100,000GoalpostUS$40,00010,0008,407Grossenrolmentratio(%)0.7401.00.800.600.400.2000Educationindex1.00.800.6001,000.400.200GoalpostUS$100GDPper capita(PPP US$)Log scale0GDPindexGoalposts for calculating the HDIMaximum MinimumIndicator value valueLife expectancy at birth (years) 85 25Adult literacy rate (%)* 100 0Combined gross enrolment ratio (%) 100 0GDP per capita (PPP US$) 40,000 1004. Calculating the HDIOnce the dimension indices have been calculated,determining the HDI is straightforward. It is asimple average of the three dimension indices.HDI = 1/3 (life expectancy index) + 1/3 (education index)+ 1/3 (GDP index)= 1/3 (0.773) + 1/3 (0.812) + 1/3 (0.740) = 0.7751.00.8000.773.600.400.200Dimension indices0.8120.7400.775HDI1.00.800.600.400.200* The goalpost for calculating adult literacy implies themaximum literacy rate is 100%. In practice, the HDI iscalculated using an upper bound of 99%.0LifeexpectancyEducationGDP0356 HUMAN DEVELOPMENT REPORT 2007/2008