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Challenging UN, Study Finds Sun—not CO2—May Be Behind Global Warming

August 16, 2021

By Paul Homewood


The sun and not human emissions of carbon dioxide (CO2) may be the main cause of warmer temperatures in recent decades, according to a new study with findings that sharply contradict the conclusions of the United Nations (UN) Intergovernmental Panel on Climate Change (IPCC).

The peer-reviewed paper, produced by a team of almost two dozen scientists from around the world, concluded that previous studies did not adequately consider the role of solar energy in explaining increased temperatures.

The new study was released just as the UN released its sixth “Assessment Report,” known as AR6, that once again argued in favor of the view that man-kind’s emissions of CO2 were to blame for global warming. The report said human responsibility was “unequivocal.”

But the new study casts serious doubt on the hypothesis.

Calling the blaming of CO2 by the IPCC “premature,” the climate scientists and solar physicists argued in the new paper that the UN IPCC’s conclusions blaming human emissions were based on “narrow and incomplete data about the Sun’s total irradiance.”

Indeed, the global climate body appears to display deliberate and systemic bias in what views, studies, and data are included in its influential reports, multiple authors told The Epoch Times in a series of phone and video interviews.

“Depending on which published data and studies you use, you can show that all of the warming is caused by the sun, but the IPCC uses a different data set to come up with the opposite conclusion,” lead study author Ronan Connolly, Ph.D. told The Epoch Times in a video interview.

“In their insistence on forcing a so-called scientific consensus, the IPCC seems to have decided to consider only those data sets and studies that support their chosen narrative,” he added.

The implications, from a policy perspective, are enormous, especially in this field where trillions of dollars are at stake and a dramatic re-organization of the global economy is being proposed.

Paper Examines Sun Vs. CO2

Using publicly available data sets from the U.S. government and other sources, it is easy to explain all of the warming observed in recent decades using nothing but changes in solar energy arriving on Earth, according to the new paper.

Indeed, while it agrees that using the data sets chosen by the UN would imply humans are largely to blame, the study includes multiples graphs showing that simply choosing different data sets not used by the UN upends the IPCC’s conclusion.

If confirmed, the study, published in the international scientific journal Research in Astronomy and Astrophysics (RAA) by experts from over a dozen countries, would represent a devastating blow to the UN IPCC and its conclusion that man’s emissions of CO2 are the sole or even primary driver of warming.

While the paper calls for further research to resolve differences between conflicting data sets and studies, the authors show conclusively that, depending on the data sets being used, it is entirely possible that most or even all of the warming has nothing to do with man.

Using 16 different estimates on the amount of solar energy, dubbed “Total Solar Irradiance,” the review compares that data with over 25 estimates of temperatures in the Northern hemisphere stretching back to the 1800s.

When solar data from NASA’s “ACRIM” sun-monitoring satellites are compared to reliable temperature data, for example, virtually all of the warming would be explained by the sun, with almost no role at all for human emissions.

And yet, for reasons that the study authors say are murky at best, the UN chooses to ignore the NASA ACRIM data and other data sets in favour of those that support the hypothesis of human responsibility for climate change.

The UN IPCC reports, including the recently released 6th Assessment Report, have consistently blamed human activities such as the emission of so-called “greenhouse gases” for the observed changes. Many studies in the scientific literature have agreed with the UN IPCC position.

However, the new study, titled “How much has the Sun influenced Northern Hemisphere temperature trends? An ongoing debate,” cites dozens of other studies that have pointed to the sun—not human activity—as the primary driver of climate changes.

According to the study authors, these dissenting scientific views have been deliberately suppressed by the IPCC and have not been reflected in the UN IPCC reports, for reasons that have not been adequately explained.

Full story here.


It has long been evident that to understand recent warming, you first have to understand what plunged the Earth into the Little Ice Age, the coldest period since the Ice Age. This latest paper addresses this question in a way that the AGW theory does not.

  1. markl permalink
    August 16, 2021 9:53 pm

    I’m amazed. Not that the warming is natural, but that this contradicting study was allowed to be published.

    • August 17, 2021 11:49 am

      “Our Mister Sun”……who knew. I saw that little film strip when in grade school and I am now 76.

  2. Paul H permalink
    August 16, 2021 10:11 pm

    I’ve been reading for quite awhile that it’s the Sun that’s causing the Earths problems and another 12,000 year cataclysmic event is due. Hence the earthquakes and unusual weather patterns. Suspicious Observer is the site, here’s a taster

    • T Walker permalink
      August 16, 2021 10:54 pm

      Interesting thank you. Try also Electroverse. And still iceagenow back postings and books. Still worth a read even though Robert Felix sadly passed away a few weeks ago.

      • Harry Davidson permalink
        August 17, 2021 12:37 am

        Electroverse, Cap Allon, finds wonderful photos. Its worth looking at the site just for the pictures, some of them are quite beautiful.

  3. August 16, 2021 10:25 pm

    Now the CARBON cancers are being rumbled.

  4. August 16, 2021 10:28 pm

    CARBON “fanciers” not cancers.

    • T Walker permalink
      August 16, 2021 10:50 pm

      Oh I don’t know cajw . I think you were right the first time.

    • Harry Davidson permalink
      August 16, 2021 11:08 pm

      Sorry? I read it as a typo and you had missed out the ‘h’.

  5. Jackington permalink
    August 16, 2021 11:07 pm

    The Climate Change attack dogs like Bob Ward will be told by their lords and masters to get this blasphemous story killed pronto.

    • August 17, 2021 12:31 pm

      Bob Ward vs. Science — entertainment for all 😏

  6. Cool-engineer permalink
    August 16, 2021 11:38 pm

    Oh, it’s pretty clear why the IPCC cherry picks material that only supports their narrative and consistently suppresses contradictory data. Their original mandate back when the IPCC was established was to investgate and quantify the extent to which human activity was warming the climate (warming being the foregone conclusion).
    If they found that humans had zero or negligible effect on the climate then there was no longer any need for the IPCC to exist. So, of course they’re going to find that humans are the cause, and hide/downplay/cancel all evidence to the contrary. And the worse it is (the more fear they can generate), the deeper they can establish themselves in a position of power.
    If CAGW is proven false and goes away, THEY go away. They’re in perpetual survival mode at the public money trough.

    • tom0mason permalink
      August 17, 2021 9:26 pm

      Cool Engineer,
      Also noted is —
      “The IPCC’s latest report uses a hockey stick-shaped reconstruction of global temperatures that wholly contradicts previous records produced by the same PAGES 2k and Oceans 2k consortiums from 4 years earlier. ”
      See for more.

    • Charles Fairbairn permalink
      August 19, 2021 3:17 pm

      @ Cool Engineer:
      Totally agree. I reached that conclusion some many moons ago when I found that the thermodynamics of water had been excluded from consideration in the Models. No wonder they are running hot.

      • August 19, 2021 4:34 pm

        That must be typical of the truth, that GIGO destroys attribution of climate changes to simple or predominant causes.
        Of course, the sun, along with water vapour,i is the main mover, even though surely not alone, speaking intuitively.

  7. bluecat57 permalink
    August 16, 2021 11:38 pm

    OMG! How many DECADES have we been saying that? I’m going on 5. Ever since that Ice Age cover.

  8. August 16, 2021 11:40 pm

    “In an age of universal deceit, telling the truth is a revolutionary act.”

  9. John Raat permalink
    August 17, 2021 1:30 am

    People . Its all to do with money(trillions}and power, They are not going to give up that in a hurry.

  10. chriskshaw permalink
    August 17, 2021 2:06 am

    The attached is a recent CIS discussion between two economists on each side of the Climate debate. Well worth a gander

  11. August 17, 2021 4:47 am

    Interesting. Thanks. Btw the long run history of GMST shows that it’s alternately warming or cooling at 100 to 1000 year time scales. The GMST is not stable and not fixed. These data violate the assumption that the warming after the LIA is an oddity that requires a human cause explanation.

  12. Chaswarnertoo permalink
    August 17, 2021 7:30 am

    It’s that big yellow thing in the sky? Who’d a thunk it ?
    Well, me an Einstein…

  13. Phoenix44 permalink
    August 17, 2021 8:30 am

    I suspect that the fundamental error climate science makes is to insist on “forcings” that it can measure rather than accept that temperature (why base everything off one variable?) is non-stable and subject to “random” fluctuations. Arguing it’s the sun is the same error. Complex systems interact in complex ways that are rarely susceptible to single input-single output relationships. It is childishly silly to conclude that it must be CO2 or the sun rather than admit that we don’t understand the complexity of climate.

    • August 17, 2021 9:02 am

      Dead right!

      I’ve always maintained that nobody has been able to even start explaining the LIA

      • Gerry, England permalink
        August 17, 2021 10:33 am

        Or how about what caused all the inconvenient warm periods – Medieval, Roman, Minoan – which would seem to be warmer than today. They must be important or the likes of Mann would not be spending so much time trying to make them disappear.

  14. Harry Passfield permalink
    August 17, 2021 9:12 am

    • Harry Passfield permalink
      August 17, 2021 9:15 am

      OK…how can I post a pic from the web? TIA

      • August 17, 2021 12:36 pm

        Links that include ‘File:’ won’t display in WordPress.

  15. August 17, 2021 2:07 pm

    Reblogged this on Tallbloke's Talkshop and commented:
    Finding the Sun the main player in climate would be the default position in any normal world, but now it gets billed as the challenger.

  16. Terry Breverton permalink
    August 17, 2021 2:55 pm

    Thank God for sanity – and do you think the BBC will even mention it?

  17. Brian Smith permalink
    August 17, 2021 3:42 pm


    “Hot off the heels of the IPCC’s latest report on the current state of climate change, the National Oceanic and Atmospheric Administration (NOAA) announced on Friday that July 2021 was officially the hottest month on record, with records dating back to 1880. The global land and ocean surface temperature was 0.93 degrees Celsius above the 20th century average this July, making it the hottest July ever recorded. And since July is the warmest month of the year with a mean surface temperature of 15.8 degrees that makes July 2021 the hottest month on record.”

    Now, I’ve no idea which one of these reports is right but shouldn’t we have some authoritative facts rather than this pointless “yes it is, no it isn’t” stuff?

    We deserve better.

  18. Chuck permalink
    August 17, 2021 4:50 pm

    What warming?

  19. August 17, 2021 8:04 pm

    Reblogged this on Gds44's Blog.

  20. tom0mason permalink
    August 17, 2021 9:08 pm

    The alarmist cult called the UN-IPCC plays down the Little Ice Age and all the people that suffered and died prematurely through it. The IPCC plays down the fabulous benefit that industrialization has brought mankind. Benefits that have allowed humans and animals and plants they depend on to survive cooler or warmer weather.
    The UN-IPCC cultists only screech unfounded alarmism about the correlation of the slight rise in both temperature and atmospheric CO2 as if it is a big catastrophe. There is little evidence that this correlation is truly meaningful. It is not catastrophic for the planet to warm; to warm-up as the planet leaves the cold of the LIA. As many historical proxy climate records teased out from geological data, ice data, stalagmites’ data, etc., show — during warm periods (especially if atmospheric CO2 is higher than during the LIA) all vegetable and animal life flourish, during cooler or cold periods life in all it’s forms dies back.

    Too many national government pay too much heed to this cultist’s organization. Too many governments are led by fools (e.g. PM Bozo Johnson) who have surrounded themselves with UN-IPCC cult members and advisors.

  21. August 17, 2021 11:16 pm

    Defund the UN as well as the BBC and see if we, or any other nation are worse off, would make the basis of 2 essays or theses.
    They have become essentially.political organisations with their own agendas and I do not want taxpayers’ money wasted on other peoples’ agendas, presented arrogantly.

  22. Eliason permalink
    August 18, 2021 1:44 am

    Wow! I believe that. I also know that Big Tech won’t allow that to be opened to all. They want to give government power to make rules that take power away from others.

  23. Luc Ozade permalink
    August 18, 2021 5:30 am

    Now that a group of HONEST scientists have had the courage to publish these findings, maybe there will be more honest scientists emboldened to come from behind the parapet with confirmatory similar findings.

    That the sun should be found to be the cause of warming (Duh!) is something many of us have known, or suspected, all along – but lacked the essential abilities to put forward empirical evidence (apart from EVERYbody’s experience of feeling warmth when the sun is shining and that it gets cooler when the sun is not).

    Now let us have an end to the needless and outrageous waste of money and resources caused by the green cultists and the deafening claims of the doom-mongers, all of which have caused such trouble, strife, anxiety and worry – never mind time.

    If I prayed at all, I would pray to God that this is the beginning of the end of this 40-year long episode of human madness. Let us get on with our lives and concentrate on the real problems in the World.

  24. marshall t permalink
    August 26, 2021 2:59 pm

    I am totally amazed that some people are being paid and get away with this nonsense publications .

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