found to be 322 kg CO2-eq. per tonn

found to be 322 kg CO2-eq. per tonne of managed waste. In Fig. 3
we can see how a ±15% change in each component of the waste
gives a variation in outcome for Case 1 between 14% more and
12% less savings than the reference scenario, and in Case 2 between
10% more and 10% less savings. Uncertainty in waste composition
has therefore a relatively large influence on the total impact from
the system in this category. The most important fractions for both
Case 1 and 2 are paper and plastic. A large paper fraction is important
for both the heating value of the waste to the incinerator and
the favourable replacement of virgin paper production. While the
CO2-emissions from burning paper are counted as carbon neutral,
the plastic is a non-renewable resource and the CO2-emissions
are accounted for in the total impact. More paper in favour of less
plastic is therefore positive for the total savings in impact in this
category.
The acidification category aggregates all emissions leading to
acidification into SO2-equivalents. From Fig. 3 we can see that a
±15% change in each fraction of the waste give a variation in outcome
for Case 1 of between 7% more and 6% less savings than in
the reference scenario, and in Case 2 of between 2% more and 2%
less savings. Changes in the percentage weight of paper and food
are the most important. This is because these two fractions are