Since 1970, extreme weather hazards have occurred every day, on average, over the past 50 years, according to the World Meteorological Organization. Being able to link such hazards to climate change and do so quickly can be an incredibly powerful tool to communicate the urgency and consequences of global warming. The emerging science of extreme event attribution utilizes mathematical approaches to tease out whether and by how much human-caused climate change contributed to individual extreme events. Attribution science has matured to the point where the number and intensity of extreme weather hazards caused by climate change can now be estimated.