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

What has been depicted in the line graph is the change in average carbon

emissions

each person in four different countries from 1967 to 2007.

Overall

, CO2

emissions

in the UK and

Sweden

ranked

first

for the

first

decade, though the latter saw a dramatic decrease and came in third place in the end.

Additionally

, per-capita carbon

emissions

in Italy and Portugal followed an upward trend over the given period. At

first

, CO2

emissions

in the United Kingdom started at around 11 metric

tonnes

, after which it experienced a slight drop and reached the initial value of

Sweden

in 2007. After declining from 10 in 1977 to nearly 7 metric

tonnes

in 2007, average CO2 emission in

Sweden

saw a moderate increase over the

first

decade. In the beginning, the amount of CO2

emissions

in Italy began at 4 metric

tonnes

and rose slightly until 1997, when it overtook

Sweden

and continued increasingly (8 metric

tonnes

) the next 30 years.

Moreover

, the figure for Portugal

initially

rose gradually from 1 to around 5 metric

tonnes

in 1997

,

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and

then

remained unchanged for the rest of the year.