Can social protection reduce damages from higher temperatures?
研究墨西哥条件性现金转移项目对高温与暴力关系的影响，发现该项目短期内缓解了高温导致的暴力行为，但五年后效果消失，表明收入增长在适应高温方面存在局限。
Can higher incomes reduce economic and social damages from higher temperatures? Causal investigation of this question has been challenging because income differences correlate with cumulative exposure and either may drive observed differences in the deleterious effects of heat. We revisit the same-day temperature-violence relationship in Mexico and show that a conditional cash transfer program attenuated the effects of higher temperatures on violent behavior, but only temporarily. Within five years of receiving ongoing monthly transfers, the heat-violence relationship returns to pre-program levels even as transfers continue. Our results highlight potential limitations of higher incomes in adaptation to rising temperatures.