How does warmer/cooler temperatures affect the game?

[Yikes]

Elevation means the air is less dense as you climb...Cold air is dense, warm is less dense. Elevation and heat = travel, cold and sea level depress it.

Okay, I was lost for a second there guys

Let's take a quick example of the Coors fields

First it was mentioned that elevation means air is less dense as you climb. We know Coors is at a high elevation.

Next mentioned is Cold air is dense, warm [air] is less dense. We know generally Coors is played in cold air.

So does that mean that Coors field is a combination where the higher elevation increases ball's travel distance but the cold air decreases it?

thanks (man if only I was as active in asking questions now as I am now during my college physics class)