Rising temperatures, dense urban populations and increasing poverty have contributed to more than a quarter of a million cases, and campaigners don’t think the government is doing enough about itOn a particularly warm autumn afternoon in Buenos Aires, Michelly Natalí Barreto Sánchez, 22, began to feel unwell. As she served customers at La Boca, the bar she had opened in Villa 31, one of the capital’s largest slums, she suddenly started to experience severe headaches and dizziness.She told her... Read this story