F-16 in-cockpit vapour vid

I was just watching this F-16 video, and was really surprised at the volume of in-cockpit vapour during the takeoff and climb out. It looks like they've got a dry-ice machine running in the cockpit. It's kind of cool in a not-at-all-helpful-to-the-pilot kind of way.

Any ideas what's causing this, or how common it actually is?

Edit: It's at 1m 28s onwards.

I once was a passenger out of Bangkok in an aircraft where the entire inside of the cabin did that as they turned the AC on - yeah, looked like a dry ice machine blowing over the seats.

Summer In Texas .. It’s the A/C

The ECS in T-45s used to chuck ice out at one point in the late '90s.