The Nature Plants paper “Chlorophyll a fluorescence illuminates a path connecting plant molecular biology to Earth-system science” was published today. Following a workshop held at the Hyytiälä Forestry Research Station in 2019, Albert Porcar-Castell from the University of Helsinki took the lead on this work. Finally it is here – I think this paper gives an exciting overview on the field of Chlorophyll fluorescence and gives us an idea of the incredible research opportunities that are ahead of us. Thanks Albert for putting this together.