The line graph shows the average production the amount of carbon dioxide emissions of four countries such as UK , Sweden, Italy and Portugal over the period. In general, it can be seen that significant upward in countries like Italy and Portugal , while the reverse was true for the UK and Sweden.
Looking at the details as regard, UK the amount of carbon dioxide production has recorded a decrease , for example , from 1967 to 2007 , it can be seen that reduce from 11 tons to 9 tons . The country of Sweden recorded a fluctuated significantly, as it showed sudden grow in 1967 and a sudden decline the following years . But the UK showed the highest production in 1967 , and also gives information a small decline. Sweden illustrated a production of 5 tons in 2007 after increasing and decreasing indicators.
In contrast, Italy, in 1967, began to produce 4 tons of the carbon dioxide, and these figures reached almost 8 tons by 2007 . Portugal recorded 1 in production at the beginning of 1967, and then year by year the production volume increased to 5 tons . These countries differ from the rest in that they have recorded steady growth. The rarely states will also be able to maintain sustainable growth for 40 years .