system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:What causes the phenomenon of wind?

I didn't want to get too specific to limit answers, but I am wondering what is the physical cause of the atmospheric phenomenon of wind? A breeze, a gust, hurricane force winds, all should be similar if not the same correct? What causes them to occur?
Edit: Grammar.
gpt
Sorry for whoever thought they were cool for down voting your simple, straightforward, shameless question.

Anyway, as you may know, warm air rises because it is less dense. So when a pocket of air gets heated up, it rises higher up in the sky. 

But as you also may know, nature doesn't like a vacuum (empty space), so something needs to fill in the empty space that the warm air left. What can fill it? A rush of cooler, denser air. That rush to fill in the gap is wind.

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EDIT: Wow, this blew up.

GET IT?!

Sorry.

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EDIT 2: Thanks for the gold!