Lv 6
David asked in EnvironmentGlobal Warming · 1 month ago

What does actual authoritative research say about trends in heat waves and hot extremes globally?

Authoritative research being actual peer reviewed studies published by scientists, not charts made by someone on Yahoo Answers. 

--(Chambers, 2020 ) Global and cross-country analysis of exposure of vulnerable populations to heatwaves from 1980 to 2018      

"Heatwaves have become more frequent and intense due to anthropogenic global warming... from 1980 to 2018... we demonstrated that there is a clear trend in increasing heatwave days globally."

--(Coumou et al., 2013 ) Global increase in record-breaking monthly-mean temperatures      

"Worldwide, the number of local record-breaking monthly temperature extremes is now on average five times larger than expected in a climate with no long-term warming...Summertime records, which are associated with prolonged heat waves, increased by more than a factor of ten in some continental regions including parts of Europe, Africa, southern Asia and Amazonia."

--(Diffenbaugh et al., 2017 )Quantifying the influence of global warming on unprecedented extreme climate events   


"We find that historical warming has increased the severity and probability of the hottest month and hottest day of the year at >80% of the available observational area...79% of the observed area exhibits a statistically significant trend in peak summer monthly temperature."


--(Mukherjee and Mishra, 2020) Increase in Compound Drought and Heatwaves in a Warming World  

"Several regions across the globe witnessed rise in compound drought and heatwave frequency (1-3 events/year), duration (2-10 days/year), and severity. This increasing pattern is spatially asymmetric, and greater amplification is observed across the Northern hemisphere due to recent warming."

Update 2:

(Russo et al., 2014) Magnitude of extreme heat waves in present climate and their projection in a warming world  

"Results show that the percentage of global area affected by heat waves has increased in recent decades...In the 11 years between 2002 and 2012, the percentage of global area affected by moderate (HWMI >=2), severe (HWMI >=3), and extreme (HWMI >=4) heat waves was threefold greater than in the previous periods (1980-1990 and 1991-2001)"

5 Answers

  • 1 month ago

    Meanwhile up in the northern latitudes where ice ages begin. The Sun is entering into an inactive state called a Solar Grand Minimum. During this cycle droughts, extreme hot and cold weather event occur in their respective latitudes.

    Your sophistry doesn't cut it.

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  • ro
    Lv 5
    1 month ago

    Actually, none of your studies cite global increases.  Let's examine.

    Study 1, Chambers.  It discusses regional  trends, but does not say heatwaves are up on average globally.   It actually discusses populations that are outside more and get sunburn.  The cite of your quote is actually just predictions.

    Study 2, Coumou.  It says heat waves are more than they would have been under some theoretical construct.  That's not actual temp comparisons.

    Study 3,  Diffenbaugh.  It simply says temps have gone up.  That's not heat waves.

    Study 4, Mukherjee, discuss "several regions."  Not global.

    Study 5, Russo.  Again, discusses regions, and not global averages.

  • Anonymous
    1 month ago

    Many more people die from cold than heat.  Climate deaths are down.  Warming is good.

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  • Anonymous
    1 month ago

    Dirac, you said yesterday that you were leaving.  But you're actually now just posting anonymously and using socks.  

    Ya know, when one says he's leaving, that means all accounts.  Ah, but I should have figured.  Just another lie in your long string of lies.

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  • Anonymous
    1 month ago

    No, Dirac,that is short term.  Heat waves are not up long term.

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