I think we need to get some facts straight. Vehicles are the source of co2 emissions during all the phases of their life cycle : production, usage and recycling.
1. During production, the co2 cost of an ice and ev are similar.
2. It is true that an EV doesn't have tailgate emissions. However, production of electricity does produce co2. Recently, because of the fact that nuclear power generation has been reduced, the emissions per kwh has gone up. In Germany, there is currently 237g co2 per kwh produced. An EV consumes 18 kwh/100k which means it emits 43 g co2/km. A modern diesel car emits approximately 100g Co2 / km.
While the EV does indeed emit less co2, it certainly isn't 0.
Source for co2 emissions for electricity production :
https://app.electricitymaps.com/map
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