The graph below shows average carbon dioxide emissions per person in the United kingdom, Sweden, Italy, and Portugal between 1967 and 2007.

The given graph gives information about the total carbon footprint of an individual in 4 countries from 1960 to 2007. As an

overall

assessment, it can be clearly seen that the amount of emissions has increased in Italy and Portugal,

whereas

it has decreased in the United Kingdom and Sweden, throughout the given period. Despite, Sweden

initially

being the 2nd largest contributor of greenhouse gas, it was surpassed by Italy in 1987. In 1967, the figure was the highest for the United Kingdom,

that is

, 10 metric

tonnes

.

This

plateaued out for 10 years, before experiencing a slight and steady decline in the remainder period. For Sweden, the number was just over 8

million

metric

tonnes

at the beginning of the period, after which it rose steadily to reach approximately 11

million

metric

tonnes

in 1977, before it took a nosedive and went down steeply, at the final level of Portugal. In Portugal and ,Italy the initial carbon emissions were just over 4

million

and under 2

million

metric

tonnes

, respectively. In the following years, both the figures upsurged, soaring dramatically to reach their culmination at just under 8

million

and 6

million

metric

tonnes

, respectively.