In the tropics on the ground NO airplane has adequate cooling cabability. A comfort issue that Boeing and Airbus need to address. Maybe a supplemental pack just for use on the ground. Pax are not happy campers in a full cabin when temperature quickly creeps above 75F during boarding and taxi. Aircraft envirnmental control systems are deficient in places like BKK, DEL, DXB, MIA... when OAT is 90+ Fahrenheit.
