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 illustrates average carbon dioxide

emissions

per person in the United Kingdom, Sweden, Italy, and Portugal, which were emitted during 40 years from 1967 to 2007. Units are measured in metric

tonnes

.

Overall

, average

emissions

of carbon dioxide in the UK and Sweden went down gradually,

while

for Italy and Portugal, they increased significantly.

Furthermore

,

it is clear that

the UK had the highest

emissions

throughout. Regarding carbon dioxide indicators in the UK, it had

emissions

at around 11 metric

tonnes

toward the beginning

it

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and

then

decreased gradually to about 9 metric

tonnes

in 2007.

Likewise

,

emissions

in Sweden, the

emissions

were approximately 8 metric

tonnes

in the first year and

then

peaked at 10 metric

tonnes

in 1977 before falling dramatically to a low of 6 metric

tonnes

in the

last

year.

On the other hand

, Italy’s

emissions

were at about 4 metric

tonnes

in the beginning,

however

by the end of the period it rose to 8 metric

tonnes

.

Similarly

, in Portugal, its CO2

emissions

increased from less than 2 metric

ton

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tons

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to around 5 metric

tonnes

at the end

of the period.