Global Flux-Based Assessment Reveals Declining Ozone Risk for Wheat in Future Climate Change Scenarios.

ABSTRACT: Tropospheric ozone (O₃) is a widespread air pollutant that impairs crop physiology and threatens global food security. Most global-scale assessments have relied on exposure-based metrics, which overlook plant-environment interactions that control O₃ uptake. This study presents a global flux-based assessment of future O₃ risk for wheat (Triticum aestivum) using a dual-sink dry deposition model driven by Earth System Models from the Coupled Model Intercomparison Project 6 (CMIP6) under three Shared Socioeconomic Pathways (SSP1-2.6, SSP3-7.0, and SSP5-8.5). We quantify phytotoxic O₃ dose (POD₆) and production losses from 2000 to 2100, analyze regional trends, and perform multiple simulations to assess the influence of soil water availabil

SUBMITTER: Guaita PR 

PROVIDER: S-EPMC12696518 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature