The graph below shows average carbon dioxide (CO₂) emissions per person in the United Kingdom, Sweden, Italy and Portugal between 1967 and 2007. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The average amount of

carbon

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dioxide

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emitted per person in the UK,

Sweden

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, Italy, and Portugal during a four-decade period is depicted in the line graph.

Overall

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, it can be shown that between 1967 and 2007, average

carbon

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dioxide

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emissions

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per person in Portugal grew. The line graph indicates that Portugal and Italy were the two nations where

carbon

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dioxide

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emissions

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had significantly increased. Over a ten-year period,

Sweden

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considerably increased its per-person

carbon

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dioxide

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emissions

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. And

Sweden

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drastically reduced its

carbon

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outflow throughout the following ten years. Over the course of 40 years,

carbon

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dioxide

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(CO2) levels in the UK progressively dropped.

On the other hand

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, the average of

Sweden

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's and Italy's separate

carbon

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dioxide

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outflow lines intersected around 1968. Similar to how the

carbon

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acid gases of

Sweden

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and Portugal crossed paths in 2007. The UK's per capita

carbon

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dioxide

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emissions

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decreased in the first ten years,

while

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the

emissions

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of CO2 in the other three countries sharply climbed.