The line graph provides information about the average carbon dioxide (CO2) emissions per person in four countries (United Kingdom, Sweden, Italy, and Portugal) between 1967 and 2007.
Overall, the average CO2 emissions per person in the United Kingdom and Sweden decreased significantly over the period, while emissions in Italy and Portugal increased consistently.
At the start of the period, the average CO2 emissions per person in the United Kingdom were the highest at 11 metric tonnes, followed by Sweden at 9 metric tonnes. Over the next decade, Sweden’s emissions caught up with those of the United Kingdom. From 1977 to 2007, both countries saw a significant decline in emissions, with the United Kingdom’s emissions falling to around 9 metric tonnes and Sweden’s to about 5 metric tonnes by 2007.
In contrast, Italy and Portugal experienced dramatic increases in CO2 emissions per person from 1967 to 1997. Italy’s emissions rose from 4 metric tonnes in 1967 to 7 metric tonnes by 1997, while Portugal’s emissions increased from 1 metric tonne to 5 metric tonnes over the same period. Both countries’ emissions stabilized between 1997 and 2007.
In summary, while the United Kingdom and Sweden saw declines in average CO2 emissions per person, Italy and Portugal experienced increases, with their emissions surpassing those of Sweden by the end of the timeframe.