The line graph compares the amount of carbon dioxide (CO2) produced per person in four different countries over a period of 40 years, starting from 1967.
Overall, it is clear that the average CO2 emissions per person in Italy and Portugal witnessed an upward trend, while the opposite was true for the figure in the United Kingdom and Sweden. Additionally, during most of the period, the amount of CO2 emitted in the United Kingdom was the highest.
Turning to the specific data, the United Kingdom commenced with the highest average CO2 emissions per person, standing close to 11 metric tonnes in 1967. It then declined steadily over the years, reaching around 9 metric tonnes in 2007. In contrast, Sweden saw a slightly different pattern. Sweden’s CO2 emissions started at 9 metric tonnes; this figure then rose gradually to just over 10 metric tonnes in 1997 before decreasing significantly to about 5.5 metric tonnes in 2007.
Moving on to Italy and Portugal, in 1967 the amount of CO2 produced per person in Italy stood at nearly 4.2 metric tonnes. It then rose to around 7.8 metric tonnes in 1997 and remained relatively stable until 2007. Similarly, Portugal’s figure saw a significant increase of 4.5 metric tonnes between 1967 and 1997 and remained at roughly 5.5 until 2007.