'Climate whiplash' is not simply a buzzword, but a symptom of a warming planet

When you hear the term "whiplash," you might picture a sudden, jarring movement, like someone's head snapping back and forth during a car accident. However, climate scientists use "weather whiplash" and "climate whiplash" to describe abrupt changes in weather patterns. As the planet continues to warm, these rapid shifts are becoming more frequent and severe.

Weather whiplash refers to sudden changes on a daily-to-weekly scale, such as a rainstorm following a heatwave or freezing temperatures after a sweltering day. Climate whiplash, on the other hand, describes more long-term fluctuations, occurring on a monthly-to-annual basis. A prime example of climate whiplash is the drought currently plaguing the United Kingdom, after a wet start to the year, farmers have struggled with their crops and pastures.

Researchers and emergency responders are increasingly concerned about compound disasters, which involve multiple extreme weather events occurring together. These events can be particularly destructive, as seen in Australia, where rainfall patterns are highly variable due to ocean temperature shifts. In the United States and continental Europe, jet stream shifts can lead to rapid temperature changes.

As greenhouse gas emissions continue to rise, computer simulations show that weather whiplash will only become more intense and frequent. A warming planet means that heatwaves, heavy rainfall, and droughts are becoming more extreme. These rapid changes can have severe impacts on human health, ecosystems, and infrastructure. Scientists are using terms like weather and climate whiplash to better communicate the severity of our changing weather patterns and to help emergency responders and health services plan for and communicate with communities affected by back-to-back disasters.