High emissions
Medium-high
Low
Medium-low
Projections
6°C
Only chance to keep heating in relatively safe band of 1.5 to 2C is with low emissions
5
4
Observed temperature change 1950-2019
3
2
1
Uncertainty
range
0
2050
1990
1950
2020
2098
Projections
6°C
5
High emissions
4
Uncertainty range
for all scenarios
Medium-high
3
Medium-low
Observed temperature change 1950-2019
Only chance to keep heating in relatively safe band of 1.5 t0 2C is with low emissions
2
1
0
1950
1990
2020
2050
2098