Dispatch/operational towing for reducing emissions?
To me it seems that using jet engines for taxiing is bad for so many reasons: engines are not the most efficient for ground use, source of unnecessary emissions, engine lifetime is wasted and FOD risk, etc...
Virgin Atlantic tried dispatch towing about 15 years ago but it seems it didn't really work out for them that time. However, as time passed, environmental issues are getting more pressing. For instance, ICAO passed a resolution for capping/offsetting CO2 emissions (CORSIA), but there is really no viable alternative fuel for flying.
Do you think that this would make operational towing a viable option? Why is it not being done right now? Or will the associated difficulties continue to keep airlines from doing this?