The graph below shows average carbon dioxide (CO₂) emissions per person in the United Kingdom, Sweden, Italy and Portugal between 1967 and 2007. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The average amount of

carbon

dioxide

emitted per person in the UK,

Sweden

, Italy, and Portugal during a four-decade period is depicted in the line graph.

Overall

, it can be shown that between 1967 and 2007, average

carbon

dioxide

emissions

per person in Portugal grew. The line graph indicates that Portugal and Italy were the two nations where

carbon

dioxide

emissions

had significantly increased. Over a ten-year period,

Sweden

considerably increased its per-person

carbon

dioxide

emissions

. And

Sweden

drastically reduced its

carbon

outflow throughout the following ten years. Over the course of 40 years,

carbon

dioxide

(CO2) levels in the UK progressively dropped.

On the other hand

, the average of

Sweden

's and Italy's separate

carbon

dioxide

outflow lines intersected around 1968. Similar to how the

carbon

acid gases of

Sweden

and Portugal crossed paths in 2007. The UK's per capita

carbon

dioxide

emissions

decreased in the first ten years,

while

the

emissions

of CO2 in the other three countries sharply climbed.