Ok, but you're still going to be a sweaty mess just walking a few blocks when its 110F and 50% humidity, and probably not going to walk even a few blocks in that kind of heat when you can otherwise traverse that with air conditioning.

I'm not arguing there shouldn't be trees,at at least where I'm at in DFW there's tons of them, I'm just arguing that dropping the temp from 110F to 100F still doesn't change the fact walking around in even 100F at decently high humidity will render most people a sweaty mess in a block. We had weeks where the heat index was around 120F this summer.

Even just sitting around outside in a shady backyard with lots of vegetation, a pool, and umbrellas we were still sweating profusely this last summer.