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

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per person which were discharged for 40

years

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

Sweden

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, Italy, and Portugal.

This

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was measured in metric tonnes.

Overall

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, the united kingdom had the highest total of CO2 discharge

although

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it decreased over the

years

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while

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Sweden

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had reached the same statistic of

emissions

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as the UK before it

finally

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decreased sharply. Despite the declining

number

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of

emissions

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in the UK and

Sweden

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, throughout the

years

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, Italy and Portugal had shown an increased

number

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of carbon dioxide

emissions

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

years

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

However

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,

Sweden

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was fluctuating between 1967-1977 before it

finally

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decreased in 2007. 

On the other hand

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

number

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as

Sweden

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.

Likewise

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, there were

also

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an increased

number

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of

emissions

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in

Sweden

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but not as much as in Portugal's rate.