Assessment of the academic value of scientific meetings in building knowledge through (a) the number of scientific publications n (produced either directly or indirectly after attending a scientific conference, symposium, or workshop) as a function of the number of scientific meetings attended over a period of 5 years (2015–2019), (b) the scientific productivity P (proxied by the number of publications produced per meeting) as a function of the number of meetings attended, and (c) the carbon footprint (tonnes of CO2 per paper per meeting) as a function of the scientific productivity (P), expressed as the number of publications produced per meeting over a period of 5 years, where the best performer and the utmost carbon emitter are shown in blue and red, respectively