The graph below shows average carbon dioxide (CO²) emissions per person in the United Kingdom , Sweden, Italy, and Portugal between 1967 and 2007.

The line graph provides information regarding the average carbon dioxide emissions in metric

tonnes

per person in four countries— the United Kingdom,

Sweden

, Italy and Portugal— from 1967 to 2007.

Overall

, it can be seen that there were upward trends in carbon dioxide emissions of Italy and Portugal,

while

the release of the UK and

Sweden

saw downward trends. Despite experiencing a decline, the UK still be the country which emitted the most quantities of carbon dioxide over the period. Looking at the details, the UK started at over 10

tonnes

in 1967,

then

it remained stable for 10 years, and after that, the figure continued to decrease steadily until it finished at over 8

tonnes

in 2007.

Sweden

witnessed a sharp rise at

first,

but

this

was followed by a considerable fall to nearly 6

tonnes

at the end

.

On the contrary

, Italy and Portugal

,

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shared similar trends: the emissions started at approximately 4

tonnes

and just under 2

tonnes

, after which they grew significantly to around 8

tonnes

and 5

tonnes

in 1997 respectively.

Next,

although

the figure for Italy stayed stable to the end, that of Portugal slightly increased and finished at the same figure as

Sweden

.