How Chiang Mai became the world’s most polluted city | Environment News | Al JazeeraBurning fields are blamed for hazardous levels of air pollution in northern Thailand but the government is doing little.#politics#agriculture#environment#capitalism#southeast-asia#thailand#climate-change·aljazeera.com·Apr 14, 2023How Chiang Mai became the world’s most polluted city | Environment News | Al Jazeera
