why is it cooler up on a mountain?
While I'm in Colorado right now, here's a little moutain trivia. It gets 5ƒcelsius colder for every 1000 feet you go up (called the lapse rate). Actually we don't directly get warm by the suns rays. The earth absorbs the sun rays, and the heat comes from the earth. The winds up on a mountain mixes the colder temperatures in more. That's why it's so cold in outer space. Even though you may be closer to the sun, there's nothing to absorb that heat and keep it in.
It's like God is saying, "see, I made this one wonderfully balanced place for you to live."