Band 5+: A graph is shown below. It represents the average CO2 emissions per person among four European countries; Italy, Sweden, Portugal, and the United Kingdom over four decades, from 1967 to 2007.

The line graph illustrates the amount of carbon dioxide that was released per capita in four countries during the period from 1967 to 2007.

As can be seen from the graph, while the emission of carbon dioxide in Italy and Portugal moderately rise, the figure for releasing CO2 substance in Sweden and the UK have a gradual decline. In addition, the UK experienced the most dramatic change regard of the quantity of carbon dioxide.

In the first period of 1967, the United Kingdom reached the highest point of freeing carbon dioxide just over 10 tonnes. Despite the remarkable rise of nearly 8 tonnes of the threw-out carbon dioxide in Sweden, Italy and Portugal went down to only approximately 4 tonnes and about 1,5 tonnes respectively.

However, Portugal had a moderate growth after a 40-year period and hit the number of generally 6 tonnes of releasing the CO2 substance. While the amount of let-out carbon dioxide in UK started to fell over the period, the quantity of carbon dioxide released by Sweden underwent a different trend in the following duration and peaked at roughly 10 tonnes and in the next 30 years at 2007, the proportion of emission carbon dioxide in Sweden had a significant decrease at equally with Portugal, around 6 tonnes. By contrast, Italy released the amount of carbon dioxide to nearly 8 tonnes in 1997 and stabilized the number until 2007.