I really liked this post. I wanted to see the actual fountains myself, so I searched a little bit. Didn't find any pictures. Well, I did see what looked like an aerial photo but I'm not sure if it was a file photo or what.

I was wondering, could they actually photograph this happening or is it based on estimations/air monitoring? I mean, those gasses being as deadly as they are, maybe they can't get close to the places this is happening? Maybe they have to see this happening from the air?