The graph below shows average carbon dioxide (Co2) emissions per person in the United Kingdom, Sweden, Italy, and Portugal between 1967 and 2007.

The given diagram illustrates the average

amount

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of CO2

emissions

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per individual in four particular countries between 1967 and 2007.

Overall

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, Italian and Portuguese seemed to produce more carbon dioxide

emissions

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whereas

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people in the UK and Sweden managed to reduce them over the course of 40 years. It can be observed that during 1967, the United Kingdom ranked first as it had the highest

amount

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of carbon dioxide

emissions

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at roughly 11 metric

tonnes

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per person.

In contrast

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, Portugal produced the lowest

amount

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at merely just above 1.5 metric

tonnes

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. Ten years later, there was a surge in the figures as it went up from just below 9 to over 10 metric

tonnes

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in Sweden.

In addition

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, the same pattern was seen in Italy (from approximately 4 to over 6 metric

tonnes

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) and Portugal (above 2 metric

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). The UK followed a downward trend since 1967 and by 2007, it hit a low of under 9 metric

tonnes

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of CO2

emissions

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.

Furthermore

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, there was a plunge in the

amount

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of

emissions

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by Swedish between 1977 and 1987 as it significantly declined from roughly 10.5 to about 7 metric

tonnes

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, and gradually fell to below 6 metric

tonnes

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in 2007. Both Italy and Portugal seemed to follow an upward trend as the figures continually grew. Italia reached the highest point of just below 8 metric

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and remained stable in 2007.

Along with

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that, the average

amount

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of emission in Portugal rocketed to 5.5 metric

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in the final mentioned year.