2024 on track to be first year to surpass 1.5C of warming above pre-industrial temperatures

Annual global surface air temperature anomalies relative to a 1850–1900 baseline

1.5C

1.0

0.5

0

1940

1960

1980

2000

2020

1.5C

1.0

0.5

0

1940

1950

1960

1970

1980

1990

2000

2010

2020

1.5C

1.0

0.5

0

1940

1950

1960

1970

1980

1990

2000

2010

2020

1.5C

1.0

0.5

0

1940

1950

1960

1970

1980

1990

2000

2010

2020

Guardian graphic. Source: Copernicus Climate, ECMWF. Notes: the figure for 2024 is a provisional estimate based on temperatures in the first 10 months of the year