What has been depicted in the line graph is average carbon dioxide each person in four different countries, in separate years, 1976 and 2007. Overall, during the initial decade, CO2 emissions in the United Kingdom ranked first, despite falling by the end of the period. Additionslly, over this time frame, per- capita emitter of CO2 went down in the Uk and Sweden, while that of went up Italy and Portugal
Throughout the entire period, average carbon dioxide emissions in Portugal and Italy followed an upward pattern, the former ranged from just under 2 tonnes to around 5 tonnes, and the latter started at nearly 4, and finished at approximately 8.
From 1977 to 1977, despite the fact that the amount of co2 emissions topped the list in the UK, then it decreased slightly and reached almost 9 tonnes. Moreover, in the beginning, the proportion of carbon dioxide saw a rising trend, at a little above 8 tonnes, and in 1977, it reached its peak and then it experienced a significant drop and stood at the amount of last value in Portugal.