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Heat Waves That Threaten Lives Will Be Common by 2100

Newest Prevention & Wellness Information

FRIDAY, Aug. 26, 2022 (HealthDay Information)

Life-threatening warmth waves will change into extra frequent by the tip of this century, in response to a brand new examine.

A “harmful” warmth index — what the temperature seems like when humidity and air temperature are mixed — is outlined by the Nationwide Climate Service (NWS) as 103 levels Fahrenheit. NWS defines “extraordinarily harmful” as 124 levels F – unsafe to people for any period of time.

Crossing the “harmful” threshold shall be three to 10 occasions extra frequent by 2100 in the USA, even when international locations handle to fulfill the Paris Settlement aim of limiting world warming to simply 2 levels Celsius (or 3.6 F), researchers report.

And in a worst-case state of affairs the place emissions stay unchecked, “extraordinarily harmful” situations might change into frequent in lands nearer to the equator, the examine warns.

“The variety of days with harmful ranges of warmth within the mid-latitudes — together with the southeastern and central U.S. — will greater than double by 2050,” stated co-researcher David Battisti, a professor of atmospheric sciences on the College of Washington in Seattle.

“Even for the very low-end estimates of carbon emissions and local weather response, by 2100 a lot of the tropics will expertise ‘harmful’ ranges of warmth stress for almost half the yr,” Battisti stated in a college information launch.

For this examine, the researchers used a probability-based technique to foretell the possible vary of future carbon emissions and their impact on world temperatures and climate patterns.

The projections included estimates of inhabitants improve, financial progress, and carbon emission ranges primarily based on financial exercise.

“It is extraordinarily scary to suppose what would occur if 30 to 40 days a yr had been exceeding the extraordinarily harmful threshold,” stated lead researcher Lucas Vargas Zeppetello. He is a postdoctoral researcher at Harvard College.

“These are scary eventualities that we nonetheless have the capability to forestall,” he continued. “This examine exhibits you the abyss, however it additionally exhibits you that we’ve got some company to forestall these eventualities from occurring.”

The examine was printed on-line Aug. 25 within the journal Communications Earth & Atmosphere.

Extra info

The Pure Sources Protection Council has extra on world warming.

SOURCE: College of Washington, information launch, Aug. 25, 2022

By Dennis Thompson HealthDay Reporter

MedicalNews

Copyright © 2021 HealthDay. All rights reserved.





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