Is this really more environmentally friendly if the electricity comes from a coal plant driving a turbine? With a gas aircraft, it's still fossil fuels driving a turbine. Sometimes they're very similar turbines: https://www.ge.com/power/gas.
In addition some of the other pollution (NOx, particulate etc) could be more manageable when coming out of a large smokestack in a desert vs in the cramped spaces of a city (car) or upper atmosphere (plane).
I’m definitely not defending coal! Just saying the calculus is complex and multi factor.