Sources:
1) 'Technologies to Reduce Carbon Dioxide Emissions in the Next Decade' by A.H. Rosenfeld, T.M. Kaarsberg, J. Romm Physics Today vol. 53 No. 11 November (2000) p29.

Figure 2.7
World energy use (in
)
versus GDP (in constant year 2000 US dollars times
).
The ratio of energy use to GDP (times
)
is also shown. Data from the World Bank [12].


Figure 2.8 Human Development Index (HDI) versus per capita energy consumption.
