Global surface temperature has risen by more than 1°C in the last century

Global land-ocean temperature index, °C. Base period: 1951-1980

(°C)

-0.5

0

0.5

1

1880

1903

1926

1949

1972

1995

Guardian graphic | Source: Nasa. Note: Average temperature for January to December in each year listed aside from 2016 where the average is taken for January to November