Extreme Climate Model Scenario Was Widely Used Despite Being Impossible

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L. Wayne Buinis

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Jul 19, 2026, 9:52:48 PM (12 days ago) Jul 19
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In late April, the U.N. Intergovernmental Panel on Climate Change admitted that Representative Concentration Pathway 8.5, or RCP8.5, the high-emissions climate model scenario that dominated climate research and policy, was “implausible.”. . .

The Heartland Institute critiqued RCP8.5 from the start, noting it was not just implausible, but likely impossible, as far back as 2017. It was debunked in detail in Climate Change Reconsidered II: Fossil Fuels in 2019. . .

. . . early climate alarmist, the late Dr. Stephen Schneider, who admitted that being honest about the science would undercut efforts to get governments to enact the policy prescriptions alarmists desired.

". . . we need to get some broad-based support, to capture the public’s imagination, [which] of course, means getting loads of media coverage, so we have to offer up scary scenarios, make simplified, dramatic statements, and make little mention of any doubts we might have,”




scifi....@gmail.com

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Jul 20, 2026, 9:20:22 AM (11 days ago) Jul 20
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Excellent article. RCP8.5 also assumed that energy technology and energy sources remained stagnant; truly a black eye for the meteorology and climatology sciences.

 

Chuck

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Elizabeth R. Apgar Triano

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Jul 20, 2026, 12:44:37 PM (11 days ago) Jul 20
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Seriously ? 

The Heartland Institute?

We all know that science tracks a moving target, and change is the only constant.  Accusations like "climate alarmist" and "scary scenarios" are beyond disingenuous.  Or was this bit provided as an example of what we are up against? 

Welcome to Monday? 

https://science.feedback.org/what-is-rcp8-5/  

https://www.carbonbrief.org/factcheck-trumps-false-claims-about-the-ipcc-and-rcp8-5-climate-scenario/ 

And let's not conflate the NIPCC with the IPCC :  https://en.wikipedia.org/wiki/Nongovernmental_International_Panel_on_Climate_Change 


That Climate Change Reconsidered business... check out the fake science/propaganda they mailed to educators in 2017:  https://blog.ucs.org/guest-commentary/is-no-place-safe-climate-change-denialists-seek-to-sway-science-teachers/  .  Funny how wacko religious and anti-science groups seem to have endless expense accounts, but science-based science education always struggles.  

Here's one example that has enjoyed some success, at least:  https://climate.earthathome.org/teacher-friendly-guide/ 


https://en.wikipedia.org/wiki/The_Western_Journal 

<< In November 2021, a study by the Center for Countering Digital Hate described The Western Journal as being among "ten fringe publishers" that together were responsible for nearly 70 percent of Facebook user interactions with content that denied climate change. Facebook disputed the study's methodology.[14][15] >>


guess i was triggered, sorry/not sorry


Lizzie 

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James E. LaBarre

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Jul 22, 2026, 3:41:52 PM (9 days ago) Jul 22
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On 7/19/26 9:52 PM, L. Wayne Buinis wrote:
. . . early climate alarmist, the late Dr. Stephen Schneider, who admitted that being honest about the science would undercut efforts to get governments to enact the policy prescriptions alarmists desired.

If I recall, climate alarmists were crying about the dire impending disaster awaiting us by the year 2000...  A quarter of a century later and the disaster is late.

The thing that angers me the most about the alarmists is it undermines our ability to devise reasonable and achievable environmental change, and instead does nothing other than drive all of our manufacturing and jobs out of our countries and into places run by tyrannical governments with NO concern about how clean their systems run and how they kill off their own citizens.

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