Two timely new titles on disasters in 2017 have been added to the Disaster Alert! series about hurricanes Harvey, Irma, Maria, and Nate, and the devastating wildfires in California and western North America. Each book in this series explains the science behind the forces in nature, as well as human-made forces, that create catastrophic events. Fascinating text and astonishing photographs highlight the types of destruction these events cause and how they affect peoples' lives, the people who study, forecast, and observe them, and how to stay safe during a natural disaster. Each book also features a simple activity or suggestion for observation.