As world leaders gather for the COP28 UN climate talks in Dubai, tens of thousands of protesters gather in Brussels to demand urgent climate action from political leaders. The demonstration was called by the Belgian Climate Coalition in an attempt to integrate climate issues into the Belgian presidency of the European Union, which begins in a few weeks' time. Organisers say 25,000 protesters took part, whilst the police put the number at around 20,000. IMAGES AND SOUNDBITES