The graph illustrates the delineated changes in the average Carbon Dioxide emissions per person in 4 European Nations from 1970 to 2010.
Starting with France in an alphabetical order, it can be seen that the trend line shown by France does not have a constant slope as similar to trend of other nations, except Spain, that has almost constant inclination. The emission trend line of France was seen to be in a plateau phase in timeframes 1970-1980 and 1990-2000. It shows a rapid decline from 1980 to 1990 and a moderate decline from 2000-2010, where the maximum value recorded is around 9.5 metric tonnes in 1980 and minimum value being 6 metric tonnes in 2010.
Seeing the trend of Ireland, the line follows a fluctuating pattern with its peak being at approximately 11 metric tonnes in 1990 and the trough being at 8 metric tonnes in 2010.
Spain is the only nation whose emissions continued the surge pattern from 1970 to 2010 with emission data recorded at 4 metric tonnes in 1970 and 7.5 metric tonnes in 2010. In contrary to Spain’s rising linear pattern, Sweden follows a declining pattern. The value of emissions recorded in 1970 severely plummeted to nearly 10 metric tonnes in 1990. Then the pattern demonstrated a line with less inclination making the values fall upto 8.5 metric tonnes in 2010.
It can be concluded from the graph that the average Carbon Dioxide emissions per person are decreasing in the European nations under study, except for Spain.