Antibiotic resistance has stalked global health for decades. Hospitals battle strains that shrug off last-resort drugs. Farmers watch livestock treatments lose power. Yet a fresh wave of research points to forces few considered central. Rising temperatures. Ubiquitous microplastics. These environmental pressures appear to supercharge the spread of resistant genes in ways that complicate every effort at control. Scientists examined more than 480,000 Salmonella genomes collected from 1940 to 2023 across 139 countries. The data revealed a clear pattern. Over eight decades of planetary warming, the quantity of Salmonella strains carrying antimicrobial resistance genes rose 10 percent worldwide. That association held in 82 of the 100 countries studied in detail. Gizmodo reported on the findings from an international team including researchers at the Chinese Academy of Sciences in Beijing along with colleagues at Cambridge and Oxford.…