The city lights are dim, making it difficult to see more than a few meters ahead, and sounds of coughing reverberate down the street. Due to dangerous levels of air pollution, many schools and workshops have recently been closed. Climate change has impacted every country on the planet, including Iran. Iran’s dangerous air pollution and haze problem appear to be part of a global crisis at first glance, but a closer examination reveals the mullahs’ fingerprints. Iran’s state-run media reported on May 17 that the country’s air quality control agency had declared Tehran to be “the world’s most polluted city today.”