Average carbon dioxide emissions per person
The graph provides the information about how much carbon dioxide that an average person in four countries emitted into the environment between 1967 and 2007.
Overall, it is noticeable that the amount of carbon dioxide in Sweden decreased far faster than the other countries in the first decade.
There were two basic trends: downward and upward. As regard the first, the emission for Sweden reach a peak of about 10 over the first decade, followed by a sudden drop to under 6. During the same period, British reduced the amount of carbon dioxide gradually at approximate 9 in 2007 in comparison with 11 in 1967.
By contract, the figure for both Italy and Portugal went up by varying degrees. The former saw a significant rise in the first ten years and continue to increase slightly ending the year 2007 at about 8. Likewise, the trend for Portugal was upward. This country recorded a dramatical climb in emission from 1 to 5.5 per person after forty years.