The graph below shows average carbon dioxide (CO2) emissions per person in the United Kingdom, Sweden, Italy and Portugal between 1967 and 2007.

The provided bar chart illustrates the approximate

amount

of

carbon

dioxide

gas

which 4 Europe countries including the United Kingdom, Sweden, Italy, and Portugal emitted from 1967 to 2007. The emission is measured in metric scale (

tonnes

).

Overall

, it can be seen from the graph that the

amount

of

gas

emission for each country is distinguished.

To begin

with, it is evident that the United Kingdom emitted the highest

amount

of

gas

over the 40-year period. In 1967, around 11

tonnes

of

carbon

dioxide

gas

was emitted from the UK,

then

the

amount

of emitted

gas

moderately decreased to approximately 9

tonnes

in 2007.

However

, the

amount

of emitted

gas

in Sweden fluctuated, in 1967 there

was

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roughly 8

tonnes

of emitted

carbon

dioxide

,

then

it significantly rose to reach its peak, at 10

tonnes

over a decade. After that, it dramatically dropped to solely around 5

tonnes

in 2007. Meanwhile, the

amount

of emitted

gas

in Italy, and Portugal showed similar upward trends. In Italy, the

amount

of

carbon

dioxide

emitted gradually increased from merely 1

tonnes

to 5

tonnes

over 3 decades, and

then

it remained relatively stable from 1997 to 2007.

Furthermore

, Portugal emitted roughly 4

tonnes

of

carbon

dioxide

gas

in 1967,

then

it marginally climbed to 7

tonnes

in 1997,

then

the

amount

of emitted

gas

was steadily constant between 1997 to 2007.