'Something that's gone from virtually never happening before will go to something that is happening every year,' said the lead researcher of a new study predicting a dramatic increase in heatwaves fueled by the climate emergency.
"Something that's gone from virtually never happening before," said one Harvard researcher,"will go to something that is happening every year."As record-breaking high temperatures and historic droughts afflict millions of people around the world, a study published Thursday warned that by the end of the century, dangerous heat driven by the worsening climate emergency will hit much of the Earth at least three times more often than today.
The study—conducted by climate researchers at Harvard University and the University of Washington and—shows how changes in the heat index driven by human carbon dioxide emissions will dramatically increase exposure to"dangerous" and"extremely dangerous" temperatures. The heat index is a measure of how hot it really feels, based on temperature and relative humidity.heat index temperatures over 103°F as"dangerous" and over 124°F as"extremely dangerous.
The study's abstract states that"even if the Paris agreement goal of limiting global warming to 2°C is met, the exposure to dangerous heat index levels will likely increase by 50-100% across much of the tropics and increase by a factor of 3-10 in many regions throughout the midlatitudes."
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