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

The given line graph illustrates the amount of carbon dioxide polluted by one person in five different countries from 1967 to 2007.

Overall

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, the CO2 contaminants increased in Portugal

as well as

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Italy,

while

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the UK and Sweden had a decline over the period.

Additionally

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, despite having a drop in CO2 emissions, the UK still had the highest figure for these pollutants. With regards to the first two regions which increased in CO2 contaminants, both Portugal and Italy were initial with under 2 and above 4 metric

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respectively. As for Portugese's CO2 contaminants, it significantly increased to nearly 5 metric

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in 1997,

then

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continued slowly rise to almost 6 in 2007. Meanwhile, Italy's population had a slight rise from 4 to approximately 8 metric

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at the end

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of the timeline. Moving on to the remaining countries which decreased in CO2 pollutants. In terms of the United Kingdom,

this

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country's population slightly dropped from 11 metric

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in 1967 to exactly 10 in 2007.

Similarly

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, CO2 emissions which came from Swedenese began with higher 8 metric

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before rising and reaching a peak of above 10 in 1997, followed by a considerable fall to nearly 6 metric

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at the end

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of

this

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40-year period.