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 gives information about the amount of

carbon

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dioxide

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(CO2) emitted per capita on average in 4 countries from 1967 to 2007.

Overall

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, the average

carbon

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dioxide

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emissions per person in the UK and Sweden experienced a downward trend,

while

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there was an upward trend of

carbon

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emitted per capita in Italy and Portugal over the period given. In 1967,

carbon

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dioxide

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(CO2) emitted by the UK and Sweden on average was over 10 and above 8 metric

tonnes

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, respectively. The UK’s emissions remained relatively constant until 1977 and

then

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decreased gradually to reach around 8.5 metric

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in 2007. In the meantime, the amount of CO2 emitted by the Swedish increased slightly to over 10 metric

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in 1977. After that, it showed a rapid drop to around 6.5 metric

tonnes

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in 1987 and

then

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continually declined and reached its lowest point at around 4.5 metric

tonnes

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.

On the other hand

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, the average

carbon

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dioxide

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emission from Portuguese and Italian in 1967 accounted for less than 2 and just over 4 metric

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, respectively. After that, there was an upward trend until 1997.

Then

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, the average

carbon

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dioxide

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emitted by those 2 countries remain constant until 2007, with CO2 from Portugal, remaining the lowest and the UK still being the highest after 40 years from the beginning of the period given.