Today's carbon emissions must be halved to restrain global temperature increases to 1.5C

Annual emissions

90 gigatonnes of equivalent carbon dioxide

Median value

(solid lines)

Range of possible pathways

(shaded areas)

80

Business

as usual

70

Paris commitments

worst and best case

64

55 gigatonnes

60

60

56

54

50

Current policy

projections

40

38

Global temperature increase

limited to below 2C by 2100

30

Global temperature increase

limited to below 1.5C by 2100

26

20

2010

2014

2018

2022

2026

2030

90 gigatonnes of equivalent carbon dioxide, annual emissions

80

Median value

(solid lines)

Current policy

projections

Range of possible pathways

(shaded areas)

70

55 gigatonnes

Business as usual

64

60

60

56

54

50

Paris commitments

worst and best case

40

38

30

Global temperature

increase limited to

below 2C by 2100

Global temperature

increase limited to

below 1.5C by 2100

26

20

2010

2012

2014

2016

2018

2020

2022

2024

2026

2028

2030