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 compares the average emissions of carbon dioxide in four different countries UK,

Sweden

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, Italy and Portugal over a period of 40 years.

Overall

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, it can be seen that radiation in the UK rises sharply.

Whereas

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, Portugal witnessed a decline over the period. In 1967, each inhabitant of the United Kingdom produces 11 metric

tonnes

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of carbon dioxide which was significantly high among other countries. In the first year,

Sweden

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experienced a peaked tonne of discharge. Italy had experienced ups and downs over time. Portugal emitted 2

tonnes

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of CO2 in the year 1967.

Moreover

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, the UK fell down over the duration with 9

tonnes

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.

Although

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,

Sweden

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experienced peaks and valleys in the 40 years. In 1987 it had 7-meter

tonnes

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of radiation.

In addition

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, Italy remained constant from 1997 to 2007.

Furthermore

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, the radiations in Portugal are relatively low. In the time 2007,

Sweden

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and Portugal had nearly 6 metric

tonnes

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of CO2.