The article by Trenberth et al. discusses the changing characteristics of precipitation in a warming climate, focusing on intensity, frequency, and duration. They highlight that while the total amount of precipitation may increase due to increased atmospheric moisture, the characteristics of precipitation events are likely to change more significantly. The authors emphasize the importance of understanding the mechanisms that drive these changes, such as atmospheric circulation patterns and the role of aerosols. They argue that the diurnal cycle of precipitation, particularly in the United States, is poorly simulated by current models and needs better representation. The article also addresses the need for improved observations and modeling of moisture transport and recycling, as well as the impact of climate change on extreme precipitation events. The authors advocate for a more comprehensive approach to studying precipitation, including hourly data and detailed analyses of precipitation frequency and intensity, to better predict and manage the impacts of climate change on water resources and agriculture.The article by Trenberth et al. discusses the changing characteristics of precipitation in a warming climate, focusing on intensity, frequency, and duration. They highlight that while the total amount of precipitation may increase due to increased atmospheric moisture, the characteristics of precipitation events are likely to change more significantly. The authors emphasize the importance of understanding the mechanisms that drive these changes, such as atmospheric circulation patterns and the role of aerosols. They argue that the diurnal cycle of precipitation, particularly in the United States, is poorly simulated by current models and needs better representation. The article also addresses the need for improved observations and modeling of moisture transport and recycling, as well as the impact of climate change on extreme precipitation events. The authors advocate for a more comprehensive approach to studying precipitation, including hourly data and detailed analyses of precipitation frequency and intensity, to better predict and manage the impacts of climate change on water resources and agriculture.