The first emergence of unprecedented global water scarcity in the Anthropocene.

ABSTRACT: Access to water is crucial for all aspects of life. Anthropogenic global warming is projected to disrupt the hydrological cycle, leading to water scarcity. However, the timing and hotspot regions of unprecedented water scarcity are unknown. Here, we estimate the Time of First Emergence (ToFE) of drought-driven water scarcity events, referred to as "Day Zero Drought" (DZD), which arises from hydrological compound extremes, including prolonged rainfall deficits, reduced river flow, and increasing water consumption. Using a probabilistic framework and a large ensemble of climate simulations, we attribute the timing and likelihood of DZD events to human influence. Many regions, including major reservoirs, may face high risk of DZD by the 2020s and 2030s. Despite model and scenario uncertaintie

SUBMITTER: Ravinandrasana VP 

PROVIDER: S-EPMC12457592 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature