A graph is shown below. It represents the average CO2 emissions per person among four European countries; Italy, Sweden, Portugal, and the United Kingdom over four decades, from 1967 to 2007.

The line graph displays the average carbon dioxide emissions per person in the United Kingdom, Sweden, Italy and Portugal from 1967 to 2007.

Overall

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, the most notable feature is the divergence in trends among most of the figures, with Sweden increasing sharply before declining,

while

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the United Kingdom,

on the other hand

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, decreased,

whereas

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Italy and Portugal increased gradually. Sweden showed the most significant changes compared to the other countries,

initially

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starting just above 8 metric

tonnes

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in 1967, before later undergoing a major growth mid-period, eventually decreasing steadily over the period and reaching approximately 5

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by the year 2007.

By contrast

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, the other countries followed different patterns over the period. The United Kingdom began at around 10

tonnes

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at the beginning of the timeframe, after which it experienced a steady decline to around 8

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by the end of the four-decade period. Meanwhile, Italy and Portugal showed a similar growth pattern, rising gradually over time,

then

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stabilizing

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stabilising

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in the final years, despite starting at markedly different levels.