The Lancet Planetary Health ecological study (Zhou et al., 2026) analyzed 480,000+ Salmonella genomes across 139 countries from 1940-2023, revealing climate variables correlate with a 10% rise in resistance genes—observational design, not RCT, with inherent confounding risks from unmeasured antibiotic use trends. This extends prior work like MacFadden et al. (2018) in Nature Climate Change, which tied temperature to broader AMR in E. coli and Klebsiella via similar geospatial models, and WHO's 2023 Global AMR Surveillance report highlighting environmental reservoirs. Missed in coverage: nonlinear rainfall-temperature interactions accelerate horizontal gene transfer in humid tropics, disproportionately burdening MENA and South Asia where surveillance gaps amplify projections; under high-emission scenarios, 2100 models forecast 24% excess resistance absent integrated One Health interventions. No conflicts declared, but modelling uncertainty limits causality claims. Synthesis shows climate not merely additive but multiplicative with misuse, demanding emission curbs alongside stewardship to avert foodborne outbreaks.