The line graph indicates the amount of carbon dioxide emissions produced by each person on the average. The information is limited only to the data of four different countries in Europe over a 40-years period from 1967 to 2007.
Overall, there are some differences between the four countries, which are the United Kingdom, Sweden, Italy, and Portugal. While the carbon dioxide that was produced in the United Kingdom and Sweden decreased, Portugal and Italy increased over the given period of time.
Firstly, the total gas emission in Portugal starts from about 1.3 metric tones in 1967 then gradually up to 5.5 metric tones in 2007. The second feature of the graph is that Italy started from about 4.3 metric tones in 1967 and rose up to 7.8 metric tones in 2007.
It is very different from Sweden and the United Kingdom. Sweden started from 8.8 metric tonnes in 1967 and rose to about 10.2 metric tonnes. Until then, the average carbon dioxide emission gradually decreased to 5.5 metric tonnes in 2007, nevertheless, that amount is the same as Portugal. The UK always decreases from 10.8 metric tonnes into only 8.8 metric tonnes during the period of time.
