Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The term “extreme weather” defines various weather phenomena associated with extreme climatological conditions, with an occurrence of 5% or less, as reported by climate experts and meteorological researchers. It may occur due to instability in the atmosphere, unbalanced temperatures, uneven air pressure on the earth, leading to such events as tornadoes, tropical cyclones, wildfires, heat waves and others. Recently, scientists announced that extreme weather could be tightly connected to human activity, responsible for climate change and global warming. Learn more about extreme weather, its factors, causes and risks in this book.