A new study has identified pollution as the world’s number one killer. Study organizers say pollution is responsible for more premature deaths than war, terrorism, natural disasters, smoking and disease. By premature death, the researchers mean dying before the average age of death within a population group. Many of these deaths can be prevented. A report on the study was published in the medical journal Lancet. The researchers looked at pollution levels, both inside enclosed buildings and in the world around us. They estimated that pollution killed about 9 million people in 2015. That would represent one of every six deaths worldwide. Karti Sandilya helped to prepare the report. He said pollution threatens fundamental human rights, such as the right to life, health, well-being, safe work as well as protections of children and the most vulnerable.