A new study by Harvard and several British universities is reporting that fossil fuel pollution is causing one in five of the world's premature deaths, meaning that the health effects of burning coal, oil, and natural gas may be even worse than previously thought.Harvard was joined by University College London as well as the universities of Leicester and Birmingham.The researchers say that they believe 8.7 million people are dying annually from problems correlated with fossil fuels, such as respiratory diseases. A previous study in 2017 had the number far lower, 4.2 million, and it didn...