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

The line chart illustrates the average

carbon

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dioxide

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emissions

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of each person in the United Kingdom , Sweden , Italy and Portugal from 1967 to 2007.

Overall

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, the four countries experienced different trends in the time period.

While

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the

index

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of Italy and Portugal rose steadily , the

emissions

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in UK and Sweden fell over time. As the graph shows , Uk's

carbon

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dioxide

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emissions

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figure started at 11 metric

tonnes

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followed by a slightly declined to around 8,3 metric

tonnes

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between the time period 1967 and 2007. Regarding Sweden's

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, in 1977

indicator

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emissions

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of

carbon

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dioxide

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reached 10,1 metric

tonnes

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.

This

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figure rapidly dropped until 1987

after

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this

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action the inde significantly plummet till 2007.

By contrast

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, the

indicator

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of

emissions

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of

carbon

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dioxide

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in Italy started from 4 metric

tonnes

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in 1967 and sharply rose in 1977 . But later the growing rate of speed collapsed until 1997

then

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the

indicator

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experienced a levelling off during the period of 10 years , so the final

index

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finished at 6,9 metric

tonnes

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. If we come to the Portugalian figures our

index

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gradually climbed from 1967 to 1987 followed by rapidly jumping over 10 years , afterwards the

indicator

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slowly grew until 2007 .