Editing Heat wave (section)

== Recent examples by country or region ==
{{Main|List of heat waves}}

===Around the world in 2024===
{{excerpt|List of heat waves#2024}}

===India===
{{excerpt|2024 Indian heat wave}}

===Southeast Asia===
{{excerpt|2024 Southeast Asia heat wave}}

=== China ===
A study found the average resident in China was exposed to 16 days of heat waves in 2023, with more than 37,000 heat wave-related deaths. Besides, the number of work hours lost due to heat stress in China was 36.9 billion in 2023, and China’s citizens experienced a 60% surge in lost safe outdoor activity hours, with each person losing 2.2 hours on average each day. The study predicted that by the 2060s, annual heat wave-related mortality is expected to reach 29,000 to 38,000 in China, with a 28% to 37% increase in work hours lost.<ref>{{cite web|author=Ding Rui|work=[[Sixth Tone]]|url=https://www.sixthtone.com/news/1016149|title=Heat Wave-Related Deaths Soared in China in 2023, Report Finds|date=November 7, 2024}}</ref>

=== United States ===
{{ multiple image | total_width=450
| image1 = 1960- Heat wave indicators - US.svg |caption1= US heat waves have increased in frequency, average duration, and intensity.<ref name=EPA_202406/> <br><br>Also, heat wave ''seasons'' have grown in length.<ref name=EPA_202406>{{cite web |title=Climate Change Indicators: Heat Waves |url=https://www.epa.gov/climate-indicators/climate-change-indicators-heat-waves |publisher=U.S. Environmental Protection Agency (EPA) |archive-url=https://web.archive.org/web/20241007114317/https://www.epa.gov/climate-indicators/climate-change-indicators-heat-waves |archive-date=7 October 2024 |date=June 2024 |url-status=live }} EPA cites data source: NOAA, 2024.</ref>
| image2 = 1960- Annual average number of days spent in heat waves - US.svg |caption2= Over decades, the average number of days spent in heat waves in the U.S. annually has increased, based on increases in both the average annual number of heat waves and on their average durations.<ref name=EPA_202406/>
}}
In July 2019, there were over 50 million people in the United States in jurisdictions with heat advisories. Scientists predicted that many records for highest low temperatures would be broken in the days following these warnings. This means the lowest temperature in a 24-hour period will be higher than any low temperature measured before.<ref>{{cite news |last1=Rosane |first1=Olivia |title=50 Million Americans Are Currently Living Under Some Type of Heat Warning |publisher=Ecowatch |url=https://www.ecowatch.com/heat-wave-central-eastern-us-2639217633.html |access-date=19 July 2019}}</ref>

According to a 2022 study, 107 million people in the US will experience extremely dangerous heat in the year 2053.<ref>{{Cite web |last1=Miller |first1=Brandon |last2=Waldrop |first2=Theresa |date=2022-08-16 |title=An 'extreme heat belt' will impact over 100 million Americans in the next 30 years, study finds |url=https://www.cnn.com/2022/08/15/weather/extreme-heat-belt-us-impact-study-climate/index.html |access-date=2022-08-22 |publisher=CNN}}</ref>

Heat waves are the most lethal type of weather phenomenon in the United States. Between 1992 and 2001, deaths from excessive heat in the United States numbered 2,190, compared with 880 deaths from floods and 150 from [[tropical cyclone]]s.<ref>{{cite web |title=Hot Weather Tips and the Chicago Heat Plan |url=http://chicago.about.com/library/blank/bl_hot_weather_tips.htm |url-status=dead |archive-url=https://web.archive.org/web/20060621110942/http://chicago.about.com/library/blank/bl_hot_weather_tips.htm |archive-date=21 June 2006 |access-date=27 July 2006 |work=About.com}}</ref> About 400 deaths a year on average are directly due to heat in the United States.<ref name="heat epidemiology" /> The [[1995 Chicago heat wave]], one of the worst in US history, led to approximately 739 heat-related deaths over 5 days.<ref>''[http://www.annals.org/cgi/content/abstract/129/3/173 Near-Fatal Heat Stroke during the 1995 Heat Wave in Chicago]''. ''Annals of Internal Medicine'' Vol. 129 Issue 3</ref> In the United States, the loss of human life in hot spells in summer exceeds that caused by all other weather events. These include [[lightning]], [[rainstorm|rain]], [[flood]]s, [[hurricane]]s, and [[tornado]]es.<ref name="Klinenberg">{{cite book |last=Klinenberg |first=Eric |title=Heat Wave: A Social Autopsy of Disaster in Chicago |publisher=Chicago University Press |year=2002 |isbn=9780226443218}}</ref><ref name="slate">''[http://slate.com/id/2068612/ Dead Heat: Why don't Americans sweat over heat-wave deaths?]'' By Eric Klinenberg. Slate.com. Posted Tuesday, 30 July 2002</ref>

About 6,200 Americans need hospital treatment each summer, according to data from 2008. This is due to excessive heat, and those at highest risk are poor, uninsured or elderly.<ref>[http://newswise.com/articles/view/542519/ Most People Struck Down by Summer Heat Are Poor] Newswise, Retrieved on 9 July 2008.</ref>

The relationship between extreme temperature and mortality in the [[United States]] varies by location. Heat is more likely to increase the risk of death in cities in the northern part of the country than in southern regions. As a whole, people in the United States appear to be adapting to hotter temperatures further north each decade. This might be due to better infrastructure, more modern building design and better public awareness.<ref>{{cite journal |author1=Robert E. Davis |author2=Paul C. Knappenberger |author3=Patrick J. Michaels |author4=Wendy M. Novicoff |date=November 2003 |title=Changing heat-related mortality in the United States |journal=Environmental Health Perspectives |volume=111 |issue=14 |pages=1712–1718 |doi=10.1289/ehp.6336 |pmc=1241712 |pmid=14594620|bibcode=2003EnvHP.111.1712D }}</ref>