Off-Kilter (atomic number 7)
 

Nitrogen surges... an eye opener... a show & tell with some of the results in Florida (and throughout the world).

Yeah, I know - it's not about orchids, but it's worthy of a quick read if interested.

Surge in nitrogen has turned Sargassum into the world's largest harmful algal bloom | NSF - National Science Foundation

This sort of thing is becoming a problem all over due to waste/fertilizers leaking into our waterways. We really need to start taking care of the environment a little better.