Science, Space and Technology News 2024
reveals that human-induced climate change is increasing global rainfall variability, leading to more erratic and intense rainfall patterns. This change necessitates immediate adaptation strategies to mitigate its broad environmental and economic impacts.Many people worldwide have observed that rainfall is becoming increasingly erratic. Intense downpours are occurring more frequently, while dry periods seem to be lasting longer and becoming more severe.
While climate models have predicted that this variability will increase with future warming, this study confirms that this pattern has already emerged over the past century.By analyzing a wide range of observational data, the researchers found that rainfall variability has increased since the 1900s over 75% of the land areas studied, particularly in Europe, Australia, and eastern North America. The researchers found that daily rainfall variability has increased globally by 1.2% per decade.
“The future we are anxious about is already here,” said Dr. Zhou Tianjun, a senior scientist at IAP and a professor at UCAS as well as the corresponding author of the study. “The increased variability in precipitation we observed adds crucial evidence of larger daily changes, making it more difficult to predict and prepare for environmental impacts.”
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