He asks, "How weak have we become if we can't even tolerate temperatures up to, let's say, 30 centigrade?". My response is it's probably pretty weak if we can't tolerate a little cold, say 21 C?
It irks me because I'm from much further north and I'm quite comfortable in a server room kept at 13 C. I'm used to winter in Buffalo (snow depths measured in feet) and Chicago (sub-sub-zero wind chills). I actually suffer at 25 C.
My secondary response is to tell Harold to bring a jacket if he ever visits me. I won't visit him as there's only so much clothing I'm allowed (by law) to remove in public.
Oh, sorry: here's rough equivalents: 30C ~ 86F, 25C ~ 77F, 13C ~ 55F, 21C ~ 70F.