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 graph illustrates changes in CO2

emission

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per person in 4 European countries in a 40-year period since 1967.

Overall

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, the average production of carbon dioxide in Sweden and the United Kingdom decreased, whilst in Italy and Portugal it rose significantly. From 1967 to 1977 the

emission

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of CO2 in Sweden spiked from almost 9 metric

tonnes

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to circa 10.5. Afterwards, it plummeted steadily and eventually reached the bottom at almost 5.5 metric

tonnes

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. The UK experienced less sharp fall in carbon dioxide production.

For instance

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, in a 40-year

period

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,period

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it decreases by 2 metric

tonnes

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,

while

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in Sweden it fell by 3.5 metric

tonnes

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from almost 9 to circa 5.5. Italy and Portugal experienced

a

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apply

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steady growth in average CO2

emission

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per person.

For example

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, the production of carbon dioxide in the former country rose step by step from 4.5 to 7.5 metric

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from 1967 to 1997 and

then

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it remained stable from 1997 to 2007. Portugal’s CO2

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has grown significantly. The process of slightly steady growth started in 1967 and lasted for 20 years.

Then

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during the next 10-year

period

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it increased drastically from 3 to 5 metric

tonnes

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and from 1997 and 2007 it

also

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remained stable, as the Italian average CO2

emission

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rate.