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 illustrates the amount of

carbon

dioxide

released on average per person in four different countries (the United Kingdom,

Sweden

, Italy and Portugal) over the

period

of 40 years from 1967 to 2007. United was measured in metric

tonnes

.

Overall

, it can be seen that the CO2 emissions in the UK and

Sweden

decreased,

while

there was an increase

of

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in

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carbon

dioxide

in the remaining countries.

Also

, during the whole

period

, the United Kingdom had the highest point. Regarding the

carbon

dioxide

emission of the United Kingdom, they stood at around 11

tonnes

before declining slightly to about 9

tonnes

in the

period

of the year.

Likewise

,

Sweden

was about 9

tonnes

at the beginning and reached a peak at over 10

tonnes

before decreasing moderately to approximately 6

tonnes

in 2007.

On the contrary

, CO2 emissions

of

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in

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Italy started at well over 4

tonnes

and witnessed

an

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a

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significant increase to under 8

tonnes

after 30 years before remaining at the same point over a

period

of 10 years. The amount of

carbon

dioxide

of

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in

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Portugal had the lowest point of 1

tonnes

in 1967

then

experienced a jump of 5

tonnes

before finishing at the same figures as

Sweden

.