Considering it was 90+ degrees at both locations I think it is disgraceful that they didn't provide air as it felt like 100+ degrees onboard.

BTW, my girlfriend recently had an AA flight at ORD canceled by the pilot because they couldn't provide A/C in the cabin while sitting at the gate. They were told that it was canceled for health concerns due to the severe heat on the plane. Apparently AA has a proactive policy regarding this issue and CO doesn't.