Researchers Find Link Between Human Misery and Climate Change

Human misery linked to climate change is getting worse, according to a growing body of research that was complemented by a new report released Wednesday by The Lancet, among the oldest and best-known medical journals.

Lancet researchers observed that high heat leads to a wide range of mental health risks, including thoughts of suicide, altered psychological states, and a spike in mental health-related hospital admissions, according to the report.

• The Lancet used a metric tracking the effect of heat waves on the general sentiment of Twitter users around the world. It draws on ...