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(a)
90
Developing
Developed
80
70
60
50
40
30
20
10
0
Decade
(b)
9
8
7
6
5
4
3
2
1
0
1950
1960
1970
1980
1990
2000
2010
Year
Fig. 7.10
(a)Outlineofdevelopedanddevelopingnations'emissionsofcarbon(GtC)bydecadefromfossilfuelburning
andcementproductionforeachdecade.(b)Annual(notdecadal)globalemissionsofcarbon(GtC)fromfossil
fuelburning(excludingotherminorityindustrialsources)since1950,theperiodofmostemissions.A5-year
ilterappliestoyearsbefore1975.Sources:seeAppendix3.Fossilfuelannualemissionspriorto1990wereless
than6GtCandemissionspriorto1850lessthan0.1GtC(IPCC,1990).
North America (USA and Canada), with roughly 5% of the global population, around
the turn of the millennium was contributing about a quarter of global emissions. The
argument here is that greenhouse gas emissions need to be tackled on a per-capita
basis. Such policy concerns will be discussed further in the next chapter.
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