Philadelphia: why do no airports have decent a/c

There are places here that feel like the heat's on. I assume it just has the outside temperature, but still.

My good luck on seats worked again, getting another exit row. This time with a window and no seat in front of mine. Super leg room! I was also able to pretty much sleep the entire flight. Even the added half hour of random circling the airport wasn't too bad.

However, it looks like I'm stuck in my terrible middle seat for this 7 hour flight to glasgow. Crap. I'm thinking I should have paid extra to get a better seat. Hopefully I can just sleep through it.

I also hope that the train out of glasgow has wireless, otherwise I'm going to be without internet for more than I like.