Drownings may increase during unusually warm weather because more people go swimming. Deaths from traffic accidents may increase because higher temperatures tend to result in greater overall road traffic (at least in North America), erosion of driving skills, and increased alcohol consumption. And it’s possible that increased time spent outside combined with greater irritability in warm temperatures could increase confrontations and therefore injuries from assault, while the increase in suicides could have its roots in a possible increase in emotional distress among young people associated with high temperatures.

—Sarah DeWeerdt, in “How climate change could change the way we die”