Average carbon dioxide emissions per person Question: The graph below shows average carbon dioxide emissions per person in the United kingdom, Sweden, Italy and Portugal between 1967 and 2007. The line graph illustrates average carbon dioxide emissions per person in four countries over a period of 40 years. Overall,Italy and Portugal showed an upward trend between 1967 and 2007. However, Sweden saw a sharp increase from 1967 to 1977, then dropped until 2007.The United Kingdom showed a downward trend over these 40 years. Italy experienced a sharp rise from 1967 to 1977, and then saw a slight increase until 1977, finally Italy remained stable at just under 8 metric tonnes. Similarly, Portugal started at just over 1 metric tones in 1967, then went up sharply to 5.5 metric tonnes and remained steady at 5.5 metric tonnes until 2007. In comparison with Italy and Portugal, the United Kingdom saw an opposite trend, It leveled off at 11 metric tonnes from 1967 to 1977, and fell steadily over the next 30 years, reached at 9 metric tonnes in 2007. However, Sweden is more complicated. It grew from 9 to just over 10 metric tonnes from 1967 to 1977, then It experienced a decrease until 1987 which declined to 7 metric tonnes, and decreased slightly to 5.5 metric tonnes which was the same as Portugal in 2007.