![]() Hurricane Ian brought both extreme storm surge and extreme rain to Florida last year, which led to deadly and destructive flooding across a huge swath of the state. Such floods are particularly dangerous when they occur at the same time. For that reason, scientists tend to focus on individual effects of a storm, such as coastal flooding from storm surge and sea level rise or inland flooding from abnormally heavy rain. Climate change affects hurricanes, for instance, in many ways, from changing the temperature of the air and the water, to potentially affecting wind patterns and ocean currents. The connection between climate change and heat waves is particularly well-understood and documented, in part because rising temperatures are relatively simple to measure and predict. In the past, that would have been an exceedingly rare heat wave – something that would never occur twice in a millennium, let alone in a person's lifetime.īut scientists found that if humans do not dramatically reduce greenhouse gas emissions, such heat waves in South Korea will be the new norm by 2060. In October 2021 parts of South Korea experienced average temperatures that were 7 degrees Fahrenheit higher than average. "Research is showing they're likely to become the new normal in the not so distant future." "Extreme heat events are more extreme than ever," says Stephanie Herring, one of the authors of the report and a scientist at NOAA. One of the big takeaways from the new report is that heat waves that used to be virtually impossible are increasingly likely. ![]() The extreme drought in California and Nevada in 2021, for example, was six times more likely because of climate change. The last decade has seen huge leaps forward for the field known as extreme-event attribution science, which uses statistics and climate models to detect global warming's impact on weather disasters. One way to understand and predict the effects of a hotter Earth is to look for the fingerprints of climate change on extreme weather events such as floods, heat waves and droughts. ![]() The Earth is already about 2 degrees Fahrenheit hotter than it was in the late 1800s, and scientists warn that humans must cut greenhouse gas emissions in half this decade to avoid catastrophic warming later this century. ![]() "It's a reminder that the risk of extreme events is growing, and they're affecting every corner of the world," says Sarah Kapnick, the chief scientist at the National Oceanographic and Atmospheric Administration (NOAA). The annual report from the American Meteorological Society (AMS) compiles the leading science about the role of climate change in extreme weather. A new report finds that human-caused climate change made the floods about twice as likely.Ĭlimate change is causing the weather around the world to get more extreme, and scientists are increasingly able to pinpoint exactly how the weather is changing as the Earth heats up.Ī sweeping new report by top climate scientists and meteorologists describes how climate change drove unprecedented heat waves, floods and droughts in recent years. Rescuers dig a spillway to release flood waters after heavy rainfall in China's northern Shanxi province in 2021. ![]()
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