A heatwave is a prolonged period of abnormally high surface temperatures compared to the average maximum temperature. Heatwaves may occur over several weeks and cause weather-related mortality.
Increased heatwaves are associated with climate change. Heatwaves are characterised by low humidity - which may worsen drought conditions, or high humidity, which may cause heat-related stress, which includes heat exhaustion, dehydration, and heatstroke.
For the first time, a hurricane has been detected in Earth's upper atmosphere. Satellites recorded a huge flowing swirl of plasma extending high into the magnetosphere that lasted for hours before dispersing.Although we've never seen anything like this before, its detection suggests that space hurricanes, as they are known could be a common planetary phenomenon.
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