700
600
500
400
300
200
Trajectories, projections and pledges
50
40
30
20
10
90
00
Total greenhouse gas emissions, million
metric tons of carbon dioxide equivalent
Peak Plateau Decline trajectory - high
PPD trajectory - low
700
600
500
400
300
200
Trajectories, projections and pledges
2050
2040
2030
2020
2010
1990
2000
Total greenhouse gas emissions, million metric tons
of carbon dioxide equivalent
Peak Plateau Decline trajectory - high
PPD trajectory - low
700
600
500
400
300
200
Trajectories, projections and pledges
2050
2040
2030
2020
2010
1990
2000
Total greenhouse gas emissions, million metric tons of carbon
dioxide equivalent
Peak Plateau Decline trajectory - high | PPD trajectory - low
700
600
500
400
300
200
Trajectories, projections and pledges
2050
2040
2030
2020
2010
1990
2000
Total greenhouse gas emissions, million metric tons of carbon dioxide equivalent
Peak Plateau Decline trajectory - high | PPD trajectory - low