In case 2, CO 2 emissions from car manufacturing actually increased by 1% to 416.
tCO 2 e. In this case, emissions from car maintenance and operations lowered by 50% to 134.
tCO 2 e. Emissions from driving was not affected since it remained unchanged.
Case
Case 3 also yielded the same emission reductions as Case 1 for automobile
manufacturing and automobile maintenance and operations. In this case, driving emissions did
drop to 48.9 tCO 2 e, a 36.9% decrease.
As shown in Figure 4 , case 3 has the most significant environmental impact; the total
amount of CO 2 emissions decreased from 759.1 tCO 2 e to 55.7 tCO 2 e. This is a 92.7% decrease
from the base scenario. That is if all Angelenos did not own a car, and instead traveled in Ubers
with higher than average fuel economy, there would be a significant reduction of CO 2 emissions
in the city. However, commuting solely in Ubers with an average fuel economy also yields a
substantial reduction in CO 2 emissions by 88.9%. The least favorable scenario is case 2, in which
the total amount of CO 2 emissions is only reduced to 628.4 tCO 2 e, a 17.2% decrease.
Figure 4: Environmental Impact Results6.2. Economic ViabilityCase