Dear Colleagues,

Natural disasters, notably floods and droughts, threaten a large portion of the world's population. Climate change increases the risk of natural disasters such as flooding and drought in the future. However, experts have discovered that there are substantial links between this risk and human-induced changes and socioeconomic distributions over the last few decades.

Flood and drought variability exceeds the range of past variability, resulting in severe repercussions on water, humans, and the ecosystem, necessitating a paradigm shift in hydrology and water resources. It's challenging to think about the negative aspects that influence risk because they're typically difficult to quantify or digitize (e.g., changed rainfall pattern, distorted river flow regime, and altered groundwater recharge). The goal of this Special Issue is to compile and discuss academic and engineering research findings on quantitative measurements and assessments of flood and drought risk in a changing world and provide insights into how to manage flood and drought risk induced by climate change and human intervention.