the graph below shows average carbon dioxide emissions per person in the United Kingdom, Swedan, Italy and Portugal between 1967 and 2007.

The line graph illustrates the amount of

carbon

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dioxide

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produced per person in four different countries (The UK, Sweden, Italy and Portugal) from the year 1967 to 2007.

Overall

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, Portugal, Italy and Sweden experienced an increase in the concentration of

Carbon

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Dioxide

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,

although

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the latter eventually witnessed a sharp fall. The sole country showing a decrease in

Carbon

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Dioxide

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emissions over the forty-year period was Italy. Looking at the details, The UK, which

initially

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ranked first by producing almost twelve metric tonnes worth of

Carbon

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Dioxide

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, saw its quantity plummet to just above eight metric tonnes in 2007.

Similarly

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, Sweden, which at first experienced a promising rise during 1927, had sunk to the bottom forty years later with figures just below six metric tonnes. Another notable trend can be seen in the data for Portugal and Italy, which experienced a twofold surge in

Carbon

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Dioxide

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emissions over the given period.