On Thursday 25 May, the Accademia Nazionale dei Lincei has organised a climate day. The aim of this day is to reflect on the important and topical issue of climate in its various aspects and to collect and compare the positions and opinions of various experts such as mathematicians, physicists, geologists, architects and economists on this topic. The event will also be attended by IGG Director Antonello Provenzale, with a speech entitled 'The long intertwined history of climate and the biosphere'. More information on the day and access is available on the Academy's website (https://www.lincei.it/it/manifestazioni/giornata-sul-clima) and in the day's programme below.