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Study finds that replacement programs that reduce vehicle lifetime can result in increased lifecycle CO2 emissions

Green Car Congress

Empirical results also revealed that even if the fuel economy of less fuel-efficient ordinary passenger vehicles were improved to levels comparable with those of the best available technology, i.e. hybrid passenger cars currently being produced in Japan, total CO 2 emissions would decrease by only 0.2%. —Kagawa et al.

Emissions 218
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Gov’t, industry, national labs collaborate on comprehensive cradle-to-grave LCA study and economic assessment of LDV GHG reductions

Green Car Congress

The analysis addressed every aspect of the vehicle and fuel life cycles, including manufacturing, end-of-life disposal (recycling and scrappage), and vehicle operation, as well as fuel feedstock production and transportation, fuel production, and fuel distribution. 350 g CO2 e/mi for ICEVs and ?250