Global average temperature change

Monthly average global surface

temperature anomalies relative

to a 1991-2020 baseline

1C

Sep 2023

+0.93C

0.75

0.5

0.25

0

-0.25

-0.5

-0.75

1980

1990

2000

2010

2020

Global average temperature change

Monthly average global surface temperature anomalies relative to a 1991-2020 baseline

1C

Sep 2023

+0.93C

0.75

0.5

0.25

0

-0.25

-0.5

-0.75

1980

1990

2000

2010

2020

Guardian graphic. Source: Copernicus. Note: first data point is Jan 1979, last is Oct 2023