It says producing the fuel to power the XC40 accounts for 41 tonnes of CO2, but there's no figure included for the amount of CO2 produced by burning the fuel in the engine, which would obviously be a lot. The Polestar 2 would not emit any CO2 at all while in use apart from in the breath of the driver, passengers and any pets being carried in the car.

The link unfortunately doesn't work for me. But anyway - can some expert answer what's probably a stupid question.

Is there any difference to the environment as a whole between producing x tonnes of Co2 all at once, as in manufacturing an EV, then none while the EV is running, and producing x tonnes (same amount) some of it in manufacture and the rest during the life of the ICE vehicle?

The globe might get away with generating more CO2 if some nations weren't chopping down their large forests so fast. We could plant more trees than we do as well.

Would be best to cut CO2 output and plant more trees (ensuring they are the right ones in the right places)