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 provides information about the carbon dioxide (CO2) emissions

in

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on

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average per person in three different countries (United Kingdom,

Sweden

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, Italy, and Portugal) from 1967 to 2007.

Overall

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, the

number

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in Italy and Portugal maintained

increase

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an increase

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while

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in UK and

Sweden

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experienced

decrease

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a decrease

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. At the beginning of the period, the United Kingdom and

Sweden

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became the most nation contributing C02 emissions which were just over 10

tonnes

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for the former and around 9

tonnes

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for the latter.

Then

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, in 1977, there was a slight decrease in the UK and the

number

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kept decreasing until 2007 which was approximately 9

tonnes

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. Meanwhile, there was a significant increase in

Sweden

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by about 2

tonnes

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in 1977 and a dramatic decrease at 7

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. The

number

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kept falling to just below 6

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at the end

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of the period.

On the other hand

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, in Italy and Portugal,

although

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being the lowest

number

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of contributing gas emissions in 1967, the figures kept raising until the end of the period. The

number

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jumped by around 4

tonnes

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for each state.