高温热浪席卷全国：东北多地空调断货，极端天气常态化渐显

Core Viewpoint - A severe and prolonged heatwave is affecting over 20 provinces in China, with significant health risks associated with extreme temperatures and a surge in air conditioner purchases [1][4][16] Group 1: Heatwave Impact - The heatwave is impacting approximately one-third of China's land area, with temperatures in some regions exceeding 35°C for the first time in decades [1][4] - In Harbin, temperatures have reached 31-34°C, significantly higher than previous years, leading to a notable increase in air conditioner sales [8][10] - The extreme heat has resulted in a spike in heat-related illnesses, with reports of severe cases and fatalities [4][5] Group 2: Air Conditioner Demand - There is a dramatic increase in air conditioner purchases in Northeast China, with sales reportedly up by 1100% compared to the previous year [10] - Installation demand has surged, with some customers facing wait times of up to two weeks for air conditioner installation [10][11] - Major retailers have reported a fivefold increase in air conditioner logistics, indicating a significant market response to the heatwave [10] Group 3: Health Risks - The risk of heat-related diseases has escalated, with a reported 218% increase in calls for heatstroke symptoms in Shandong compared to the same period last year [4][5] - National health data indicates a 15.8% increase in reported heatstroke cases and a 75% increase in fatalities compared to the average from 2020-2024 [5] - Global data shows that high temperatures have led to significant mortality rates, particularly among vulnerable populations such as children and the elderly [7][16] Group 4: Climate Change Context - Experts indicate that extreme weather events, including heatwaves, are becoming more common due to global warming, with a notable increase in the frequency and intensity of high-temperature events [1][16] - The average number of warm days in China has increased by 6.7 days per decade, contributing to longer and more intense warm seasons [16][17] - The current heatwave is attributed to persistent high-pressure systems that inhibit cloud formation and precipitation, leading to sustained high temperatures [16][17]