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 above illustrates the average carbon dioxide

emissions

per person which were discharged for 40

years

between 1967 and 2007 in four different countries: United Kingdom,

Sweden

, Italy, and Portugal.

This

was measured in metric tonnes.

Overall

, the united kingdom had the highest total of CO2 discharge

although

it decreased over the

years

while

Sweden

had reached the same statistic of

emissions

as the UK before it

finally

decreased sharply. Despite the declining

number

of

emissions

in the UK and

Sweden

, throughout the

years

, Italy and Portugal had shown an increased

number

of carbon dioxide

emissions

. The declining amount of CO2 emission in the UK was stable throughout the

years

with the final amount of 9 tons in 2007 but it was still the highest mass among these other 4 countries.

However

,

Sweden

was fluctuating between 1967-1977 before it

finally

decreased in 2007. 

On the other hand

, the incline rate of Portugal was high, approximately 4 metric tonnes until it reached the same

number

as

Sweden

.

Likewise

, there were

also

an increased

number

of

emissions

in

Sweden

but not as much as in Portugal's rate.