Try running the engine in a fossil ( but please don’t ) for ten minutes to reduce the cabin temp and seen how much THAT costs in fossil fuel burn !.
More than the equivalent of 2 miles of EV range consumed, I would hazard a guess !.
Oh …… plus all the toxic gases kicked out of the exhaust on the fossil to boot, if we are worried about our green credentials.
E.G. - Like in winter time, we never see fossil owners running the engines of their cars in an attempt to defrost the windows and warm the cabin, before starting their journey ??.
Chuffing out white clouds of smoke
into the air, while they are busy finishing their favourite breakfast cereal and catching up with their e.mails ??.
Are they unduly concerned about their green credentials at this point ?.
They could not give a flying sh*te or they would not be doing it in the first place.
The EV driver however, can defrost his car without any emissions from a tail pipe and is not guilty of leaving his vehicle running, unattended.
You choose the best / worst option here for yourself !.