Claim: Heat waves make people measurably more aggressive and violent

The claim that heat waves make people measurably more aggressive and violent is mostly true. Numerous studies support this assertion, indicating a significant correlation between rising temperatures and increased violence. For instance, a meta-analysis found that a 10°C increase in temperature is linked to a 9% rise in violent crime. However, some researchers argue that while heat can increase aggression, the effects may not be as pronounced as suggested, and laboratory studies show inconsistencies. This nuance indicates that while heat waves can contribute to aggression, the relationship is complex and not absolute. The models diverge sharply — treat this as higher-uncertainty. Gemini comes in highest (95%), while OpenAI is lowest (70%). Opposing sources suggest that while there is a correlation between heat and aggression, the magnitude of this effect may be overstated. Some studies indicate that the increase in violent incidents due to heat is modest and not as significant as the claim implies. Additionally, laboratory studies have shown inconsistencies, which raises questions about the reliability of the findings. This uncertainty does not negate the overall trend observed in the evidence but highlights the need for caution in interpreting the strength of the relationship between heat waves and aggression.