The graph below shows the average carbon dioxide (CO2) emissions per person in the United Kingdom, Sweden, Italy and Portugal between 1967 and 2007. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The line graph illustrates the amounts of CO2 emitted by each person in four countries from 1967 to 2007.

It is clear that

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each Swedish or

UK

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person released less CO2 over the period researched, but CO2 emissions in Italy and Portugal showed a rise. Citizens in the

UK

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was

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were

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responsible for the largest amount of CO2 released all the time. In 1967, about 11

tonnes

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CO2

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of CO2

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was produced by a

UK

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citizen, followed by 9

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in Sweden. In comparison, each Italian discharged over 4

tonnes

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which

was

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were

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approximately threefold higher than that of a Portuguese. From that time onwards, the average quantity of CO2 released in the

UK

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decreased gradually to under 9

tonnes

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while

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the figure for Sweden, after

an

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a

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1 tonne

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1-tonne

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climb in the first decade,

also

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went down moderately to well under 6

tonnes

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at the end

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of the period.

In contrast

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, more CO2 was produced by each person in Italy whose figure grew to nearly 8

tonnes

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in 2007, compared with an equally significant increase to roughly 6

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in Portugal.