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 shows how much carbon dioxide (CO2) was produced and its average amount per person in four countries, namely, the United Kingdom,

Sweden

, Italy and Portugal from 1967 to 2007.

Overall

, the figure for carbon dioxide emissions for Italy and Portugal increased during the whole

period

, despite being the lowest point at the beginning of the

period

, 1-4

tons

while

the

UK

and

Sweden

showed a decrease until 2007.

In addition

to that, the

UK

owned the highest point among others in the whole

period

. Measuring the highest and the lowest rate of CO2 emissions per person at the beginning of the

period

, in 1967, there were about 11

tons

of CO2 in the

UK

whereas

Portugal witnessed only over 1 ton. The share of the

UK

declined by about 3

tons

until the end of the

period

,

by contrast

, people in Portugal emitted much more CO2 increasing to its highest

levelof

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level of

6tons in 2007. Looking at the details for

Sweden

and Italy, the former showed 8

tons

as

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twice as much as Italy, 4

tons

.

However

, the share of

Sweden

went down to over 5

tons

in 2007, reaching its highest point to over 10

tons

in the first decade, in 1977. Contrasting to Italy, its figure increased to under 8

tons

during the

period

between 1967 and 2007.