This paper was adapted from Energy Innovation’s previous publication, The Extremes Become the Norm, to explain how small changes in average temperature lead to large changes in extreme weather. As global temperatures move upward, certain parts of the world will become drier, causing droughts and wildfires, while other parts will become wetter, causing hurricanes and flooding. Increasing occurrence of these natural disasters will have catastrophic economic, health, and social impacts in communities around the world.