Towards carbon footprint measurement of the ERA Congress: five key strategies for greener events

The urgency of climate change has prompted institutions worldwide to reassess their carbon footprints, and the scientific community is no exception.Large-scale medical congresses, such as the European Renal Association (ERA) Congress (Table ), contribute substantially to carbon emissions.Nonetheless, these larger events provide immense value by fostering collaboration, networking, knowledge exchange, and professional development.As a first step towards measuring carbon emissions, an estimation of the carbon footprint of air travel for ERA22 in Paris and ERA23 in Milan estimated at 1691 tons and 5808 tons of CO2e (carbon dioxide equivalents), respectively (1).These estimations had some limitations, as