Nature CommunicationsDeadly heat stress conditions are already occurringSarah E. Perkins-KirkpatrickCatherine H. GregoryJennifer K. VanosJane W. BaldwinHaley StaudmyerGisel Guzman-EchavarriaOllie Jay2026-03-26Full textDOI https://doi.org/10.1038/s41467-026-70485-1