The line graph illustrates the average carbon dioxide emissions per person in four distinct European countries: Great Britain, Sweden, Italy, and Portugal, from 1967 to 2007.
Overall, Great Britain had the highest average carbon dioxide emissions throughout the period, while Portugal experienced a decrease. Sweden showed fluctuations, and Portugal’s emissions dramatically increased.
In 1967, Great Britain’s average carbon dioxide emissions were around 11, decreasing to nearly 9 by 2007. Between 1967 and 2007, the average emissions peaked above 10 before dropping to around 7. Italy and Portugal saw rapid increases in emissions in 1967 and 1987.
In 1997, Italy’s emissions were equal to Sweden’s but slightly dropped below 8 by the end of the period, remaining stable in the following decade. Portugal’s average emissions matched Sweden’s by the end of the period.