Convergence in Adaptation to Climate Change: Evidence from High Temperatures and Mortality, 1900–2004
利用美国各州一个多世纪的月度死亡率与每日气温数据，研究发现极端高温对死亡率的影响在常经历高温的州较小，且冷热州之间的这种差异随时间缩小但至2004年仍存在，表明健康驱动的气候变化适应可能缓慢且成本高昂。
This paper combines panel data on monthly mortality rates of US states and daily temperature variables for over a century (1900-2004) to explore the regional evolution of the temperature-mortality relationship and documents two key findings. First, the impact of extreme heat on mortality is notably smaller in states that more frequently experience extreme heat. Second, the difference in the heat-mortality relationship between hot and cold states declined over 1900-2004, though it persisted through 2004. Continuing differences in the mortality consequences of hot days suggests that health motivated adaptation to climate change may be slow and costly around the world.