Global economic downturn
15
10
05
00
95
90
85
80
75
Energy-related CO2 emissions, billion tonnes
35
30
25
20
15
10
Global economic downturn
15
10
05
00
95
90
85
80
75
Energy-related CO2 emissions, billion tonnes
35
30
25
20
15
10
Guardian graphic
Source: IEA