Researchers working in the Riomar project gather for a briefing meeting on board of the Antedon II boat prior to depart for a sea trip to the Rhone River delta in the Gulf of Lion at the harbour in Marseille on September 25, 2024. The Riomar project studies the evolution of the coastal environment under the influence of rivers in five metropolitan coastal areas to observe and model the coastal environment at the mouths of French rivers. (Photo by DAVID COSTA / AFP) (Photo by DAVID COSTA/AFP via Getty Images)