Note: I found this article while researching air pollution in the context of the oil refinery in Grangemouth, Scotland. I was put off by the focus on loss of productivity and capital, rather than the effect on the individual or on society, but the underlying research checks out and is worth reading about.
I rather like Gemini. I have several presences on the protocol, as well as a hefty list of gemlogs I follow. The somewhat slow and niche nature of this corner of the internet has meant that I come and go, rather than using it daily (like I do with the web); but it always feels sort of cozy and welcoming when I do eventually return.