Unlocking global rainwater harvesting potential for safe drinking water access.

ABSTRACT: Sustainable Development Goal (SDG) 6.1 aims for universal access to safely managed drinking water (SMDW) by 2030, yet progress remains off-track with 2.2 billion people lacking these services. Our comprehensive global analysis revealed a striking paradox: 88.5% of those without SMDW resided in regions with abundant rainfall, while only 1.26% used rainwater for potable use. Accordingly, a parametric framework integrating environmental and socioeconomic indicators was developed to quantify rainwater harvesting (RWH)'s potential for advancing SDG 6.1. This framework enabled a stepwise, actionable roadmap centered on two synergistic pathways: extending maximum seasonal storage potential and improving transition ratios, with simulations demonstrating that progressive optimization of RWH could i

SUBMITTER: Yuan Q 

PROVIDER: S-EPMC12722354 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature