the graph below shows average carbon dioxide(co2) emission per person in the United Kingdom, Sweden,Italy and Portugal between 1967 and 2007

The line graph demonstrates average

carbon

dioxide

(CO2) emissions per capita in the United Kingdom, Sweden, Italy and Portugal from 1967 to 2007. The average

number

of individual CO2 emissions in Italy and Portugal witnessed annual steady growth throughout the

period

given.

Meanwhile

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Meanwhile,

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in the United Kingdom and Portugal, each person's average CO2 emissions

number

generally experienced downward trends. In 1967, people in the United Kingdom produced just above 10

tons

carbon

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of carbon

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dioxide

in

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on

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average.

Then

, the

number

gradually declined throughout the

period

given to more or less 8

tons

in 2007. As for Sweden, the

carbon

dioxide

(CO2) average

number

rose steeply between 1967 and 1977 from around 8

tons

to 10

tons

.

However

, it fell dramatically

to

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for

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the rest of the given

period

at approximately 5

tons

in 2007. In Italy, individual average

carbon

dioxide

began at 4

tons

in 1967. The

number

rose steeply between 1967 and 1977 to around 6

tons

and went up gradually for the remainder of the

period

. As for Portugal, the

number

grew steadily from about a ton to around 3

tons

in

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between 1967 and 1987. The

number

rose significantly from 1987 to 1997 reaching approximately 5

tons

and stayed at that level until the final decade of the

period

given.