Mine all come from my Saturday morning flight:
Even if the air isn't especially visible, the clouds the float in it are!
Haze over L.A. Doesn't look too bad.
Actually, yes it does.
Hence my mantra, whenever I fly or drive into L.A. "Don't breathe anything you can't see!"
Your turn! Show us some air, directly or indirectly. Post the picture(s) to your blog or journal, include links from there to here and (in the comments below) from here to there. I'll be back on schedule next Sunday night with the results!