the pie charts below show units of electricity production by fuel source in Australia and France in 1980 and 2000.

Overall

,

it is clear that

the production of

heat

increased significantly in both France and Australia from 1980 to 2000.

Additionally

, the french burns the most coal to produce service in both years

while

Australians replace nuclear power with natural gas to create electricity in 2000. As can be seen, in 1980 in Australia, coal accounted for the highest figure, at 50

units

,

whereas

hydro and nuclear power had a similar number, at 20

units

.

However

, these figures are much higher than the volume of

heat

produced by oil, at only 10

units

. The year 2000 witnessed an increase in the supply of

heat

produced by coal at 130 groups, compared to 36 systems of hydropower. In France, the main sources of produced

heat

in 1980 were coal and natural gas, at 25

units

,

whereas

oil’s figure was slightly lower by 5

units

. In 2000, there was a dramatic increase in the volume of

heat

by nuclear to 126

units

. Meanwhile, oil and coal had the same figures, at 25 entities. The figures for hydropower and natural gas fall significantly, at 2

units

for both categories.