Change in global annual mean sea level

Centimetres difference, compared with 1981-2000 average

High emissions

Medium-high

Low

Medium-low

Projections

35cm

Every centimetre rise raises the risk of flooding and storm surges

 

30

25

20

Observed change in global mean sea

level 1993-2019

15

10

5

Uncertainty

range

0

1993

2020

2050

Projections

35cm

30

High emissions

Uncertainty range

for all emissions

scenarios

25

Medium-low

Medium-high

20

Low

Observed change in global mean sea

level 1993-2019

15

Every centimetre rise raises the risk of flooding and storm surges

10

5

0

1993

2020

2050