The graph below shows the average carbon dioxide 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 relevant comparisons.

The bar chart illustrates the figure for carbon dioxide

that is

emitted by each person in four countries (the UK,

Sweden

, Italy, and Portugal) from 1967 to 2007. It is observed that at

first,

the large figure for carbon dioxide

emissions

is related to the United Kingdom and

Sweden

.

However

, the amount of CO2 in Italy and Portugal is lower.

Then

, the UK and

Sweden

experienced a decline in

emissions

.

However

, Italy and Portugal saw a gradual increase over the period. In 1967, the UK had the highest CO2 emission, at just over 10 metric tonnes per person, followed by

Sweden

at around 8. Over the next 40 years,

emissions

in the United Kingdom steadily decreased, reaching nearly 8 in 2007.

Similarly

,

Sweden

's

emissions

rose rapidly until 1977, peaking at just over 10, but

then

dropped significantly to just under 6 by the end of the period.

In contrast

, Italy and Portugal exhibited upward trends. Italy's

emissions

started at nearly 4 in 1967 and rose consistently to just under 8 in 2007, exceeding

Sweden

's in 1987. It is worth noting that Portugal had the lowest CO2

emissions

initially

in 1967, at nearly 2, but

this

amount climbed gradually to just under 6 in 2007.