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Heatwaves over land have become more frequent and more intense in almost all world regions since the 1950s, due to climate change. Heat waves are more likely to occur simultaneously with droughts. Marine heatwaves are twice as likely as they were in 1980. [34] Climate change will lead to more very hot days and fewer very cold days.
The main danger with a heat wave is probably obvious: too much time spent in the heat can quickly lead to illnesses such as heat exhaustion or heat stroke, which could prove fatal.
The heatwaves caused severe damage in areas such as the western United States, southern Europe, and parts of Asia. [5] The abnormal temperatures have led to a "very extreme" likelihood of wildfires, according to the Fire Weather Index. [6] The heatwaves were also occurring alongside some unusually heavy flooding. [7] [8]
Hotter, longer heatwaves. Even a small increase in average temperatures makes a big difference to heat extremes. As the range of daily temperatures shifts to warmer levels, hotter days become more ...
Why is heat so dangerous? It's easy to see the sun's effects on the skin, as too much sun exposure can cause a big red burn or rash. And sunburns raise your risk of skin cancers including melanoma ...
Climate change is altering the geographic range and seasonality of some insects that can carry diseases, for example Aedes aegypti, the mosquito that is the vector for dengue transmission. Global climate change has increased the occurrence of some infectious diseases. Infectious diseases whose transmission is impacted by climate change include, for example, vector-borne diseases like dengue ...
During mid-June 2022, a record-breaking heat wave affected half of the United States. Record-high temperatures were set from California to Texas on June 13. On June 14, dangerous heat spread to the Midwest, South, and the Plains. On June 15, St. Louis reached a record-tying temperature of 38 °C (101 °F).
Climate change makes heatwaves hotter and more frequent. This is the case for most land regions, and has been confirmed by the U.N.'s global panel of climate scientists (IPCC).