The graph below shows average carbon dioxide (CO2) emissions per person in the United Kingdom , Sweden , Italy and Portugal beteween 1967 and 2007 .

The line chart illustrates the average

carbon

dioxide

emissions

of each person in the United Kingdom , Sweden , Italy and Portugal from 1967 to 2007.

Overall

, the four countries experienced different trends in the time period.

While

the

index

of Italy and Portugal rose steadily , the

emissions

in UK and Sweden fell over time. As the graph shows , Uk's

carbon

dioxide

emissions

figure started at 11 metric

tonnes

followed by a slightly declined to around 8,3 metric

tonnes

between the time period 1967 and 2007. Regarding Sweden's

index

, in 1977

indicator

emissions

of

carbon

dioxide

reached 10,1 metric

tonnes

.

This

figure rapidly dropped until 1987

after

this

action the inde significantly plummet till 2007.

By contrast

, the

indicator

of

emissions

of

carbon

dioxide

in Italy started from 4 metric

tonnes

in 1967 and sharply rose in 1977 . But later the growing rate of speed collapsed until 1997

then

the

indicator

experienced a levelling off during the period of 10 years , so the final

index

finished at 6,9 metric

tonnes

. If we come to the Portugalian figures our

index

gradually climbed from 1967 to 1987 followed by rapidly jumping over 10 years , afterwards the

indicator

slowly grew until 2007 .