Responses of compound daytime and nighttime warm-dry and warm-humid events to individual anthropogenic forcings

Study key findings & significance

• Greenhouse gases alone amplify the natural frequency of warm-dry events by 1.5-5 times and warm-humid events by 2-9 times in tropical and extratropical latitudes.
• As greenhouse gas emissions are expected to continue impacting our global climate, we expect to see greater frequencies of warm-dry and especially warm-humid events.
• Compound hot and humid conditions are also extremely dangerous for human health and can amplify heat-related morbidity and mortality rates (Raymond et al 2020, Li et al 2020).