What effects does cannabis have? How has Catalonia tried to regulate marijuana?Your browser does not support the video element<p>What effects does cannabis have on people? How has Catalonia tried to regulate marijuana? What is the executive's position on cannabis clubs operating in Catalonia?</p> <p>Catalonia is known as ‘the epicenter of Europe’s illegal marijuana market’. We asked <span>Dr. Joan Colom, who is in charge of the Catalan government’s drug addiction policies, about the country's most-consumed drug.</span></p> / ACNshareACNFirst published: February 27, 2022 11:29 AM