Thomas M. Kostigen is a New York Times bestselling author and journalist. His most recent books are National Geographic's "The Extreme Weather Survival Guide: Understand, Prepare, Survive, Recover" and "Extreme Weather: Surviving Tornadoes, Tsunamis, Hailstorms, Thundersnow, Hurricanes and More!" Previous nonfiction works include, The Green Book: The Everyday Guide to Saving the Planet One Simple Step at a Time (Crown); You Are Here: Exposing the Vital Links Between What We Do and What That Does to The Planet (HarperOne); The Green Blue Book: The Simple Water-Savings Guide to Everything in Your Life (Rodale); and The Big Handout (Rodale). He is also the author of the novels Golden Dawn (Macmillan) and Fatwa (Macmillan).As a journalist, Kostigen has reported from war zones to the world's wonders across five continents. A former global columnist for The Wall Street Journal Digital Network and editor at Bloomberg News, he contributes regularly to major publications worldwide, including National Geographic.com, Discover, Men's Health, Best Life, The Financial Times, The Wall Street Journal, The Chicago Tribune, The Los Angeles Times, among many others.