Abstract Biohydrogen production through dark fermentation is very attractive as a solution to help mitigate the effects of climate change. via cleaner bioenergy production. Dark fermentation is a process where organic substrates are converted into bioenergy. driven by a complex community of microorganisms of different functional guilds. https://www.roneverhart.com/Claus-Porto-Cerina-Ocean-Mist-Bath-Soap-Bar/