The Coalition is not asking to create any new planes, but to accept planes such as the A-220 which are considerably more fuel efficient than the E-175 that is the only passenger jet in production that can meet the Aspen wingspan limit of 96 feet.
I am just trying to find out if this "modern technology has proven that far more efficient planes with smaller wings can achieve the same or greater environmental benefits." exists. Every thing I have seen is longer wingspans are better from an environmental standpoint.
The guy who publishes this stuff is not an engineer, a pilot, has never worked for an aviation company or an airline.
As far as it goes - higher passenger loads are better as this means fewer flights. The E-175 is limited under scope clauses to 70 seats.
As for the issue of higher loads = more passengers -check Aspen hotels prices, no one comes here because of a cheap ticket.