The line graph provides information about discharging the average 
amount
 of greenhouse gases per person in the four countries, the Use synonyms
UK
, Sweden, Italy, and Portugal from 1967 to 2007.
Use synonyms
Overall
, it can be seen that the average Linking Words
carbon
 Use synonyms
dioxide
 emissions in Italy and Portugal experienced an increase Use synonyms
while
 releasing Linking Words
carbon
 Use synonyms
dioxide
 in the Use synonyms
UK
 and Sweden decreased notably over the 40 years, albeit, the Use synonyms
UK
 represented the highest Use synonyms
amount
 of Use synonyms
carbon
 Use synonyms
dioxide
 Use synonyms
emission
.
The Use synonyms
amount
 of Use synonyms
carbon
 Use synonyms
dioxide
 Use synonyms
emission
 in Italy surged from 4 metric Use synonyms
tonnes
 to over 6 metric Use synonyms
tonnes
 in the first Use synonyms
decade
, Use synonyms
then
 experienced a stable increase and in the Linking Words
last
 Linking Words
decade
, reached a plateau and stood under 8 metric Use synonyms
tonnes
 Use synonyms
although
 Portugal in the first 30 years, saw a sharp increase in Linking Words
carbon
 Use synonyms
dioxide
 Use synonyms
emission
, Use synonyms
similarly
, in the Linking Words
last
 Linking Words
decade
 with just under 6 metric Use synonyms
tonnes
 reached a plateau.
Use synonyms
While
 the Linking Words
UK
 discharged more than 10 Use synonyms
tonnes
 metric 1967, the Use synonyms
amount
 of greenhouse gas declined significantly and in 2007 stood at above 8 metric Use synonyms
tonnes
. Sweden in the first Use synonyms
decade
 witnessed a surge, amounting to approximately 10 metric Use synonyms
tonnes
; Use synonyms
however
, the average Linking Words
carbon
 Use synonyms
dioxide
 Use synonyms
emission
 from 1997 to 2007 decreased dramatically and stood under 6 metric Use synonyms
tonnes
.Use synonyms