The graph below shows average carbon dioxide (CO2) emissions per person in the United Kingdom, Sweden, Italy, and Portugal berween 1967 and 2007. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

A glance at the line graph presents the average of carbon emissions per capita in four European countries namely Great Britain, Sweden, Italy and Portugal, from 1967 to 2007.

Overall

, it is evident that the figures for the United Kingdom and Sweden underwent downward trends,

while

the remaining two witnessed steady growth. Despite experiencing a notable decrease, British citizens still recorded the highest individual carbon pollutants on average throughout the period given. To commence, the United Kingdom constituted the biggest carbon dioxide (CO2) release in 1967 at around 11

tonnes

. The number went down gradually to reach its lowest point at approximately 9

tonnes

.

On the other hand

, the average number of gas emissions in Sweden began at 8

tonnes

and grew to 10

tonnes

in a decade.

Subsequently

, the number fell dramatically between 1977 and 2007 to just below 6

tonnes

.

Conversely

, the figure for Italy started at slightly above 4 in 1967. It increased steadily to around 8

tonnes

and hovered around that level for the final two decades.

Likewise

, the average of gas pollutants per capita in Portugal was

initially

the lowest amongst the other three at approximately a ton, it went up significantly and culminated at about 5

tonnes

.