C3

IPCC Climate Models: The Divergence From Climate Reality Continues In 2014

The IPCC's climate models have been noteworthy for their unfettered pattern of prediction failure, misleading policymakers and taxpayers alike regarding global warming...predictably, the pattern of failure continues in 2014.....

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Multi-billions have been invested into climate science, with a special emphasis on climate models.

Despite the massive expenditures, the climate models utilized by the IPCC continue to be ginormous failures for the purpose of prediction.

The adjacent chart depicts this continuing pattern of failure by comparing the 3-year average of observed temperatures (HadCRUT4) versus the output of state-of-the-art CMIP5 models. The dataset plots reflect the most current values through June 2014.

It is a testament to consensus failure by government funded scientists who are driven by anti-science agendas, the political hyperbole of activists and crony capitalists.

The chart is also a testament to the unmitigated disaster of basing computer models almost exclusively on the influence of trace atmospheric gas CO2 instead of the natural climate cycles and oscillations that dominate the world of climate reality.

Additional climate model charts and "global warming" charts.

Note: CMIP5/RCP4.5 model dataset. HadCRUT4 observed global temperature dataset.

Per NOAA, Extreme Hot Months In U.S. Less Frequent After 1980 Despite Huge CO2 Emissions

Climate change alarministas claim that modern human CO2 emissions are causing hotter temperatures around the world and the U.S...extreme global warming with blistering temperatures is their rallying cry but is it true?...Nope...it's another case of 'those stubborn facts'.....

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Of course, the CAGW argument has been (and continues to be) that huge CO2 emissions have produced extremely hot weather records during the 1980's, 90's and the 21st century, so far. But is it true?

Well, as pointed out earlier this year, the feared global warming is not producing the proclaimed hotter temperature records across the world.

And for the U.S.? NOAA confirms the same through June 2014. It is empirically true that the climate alarministas fear-mongering about record-setting extremes are without merit.

Case in point. This collection of charts depict NOAA's climate record frequency for maximum monthly temperatures across the contiguous U.S.

Figure #1 is the record of the 5% hottest months since 1980 in the U.S. Out of 409 months (34+ years), these 20 months represent the extreme. (The light blue data-points are the climate records since 1980 for all charts.)

Figure #2 is the 409-month record starting in 1920. These are the extreme 5% hottest months in the U.S. prior to the 1960s. (The dull red data-points are the climate records since 1920 for all charts.)

Figure #3 reveals that there have been zero months in the U.S. since 1980 that have had over 90 degree monthly averages. In contrast, the 1930's had two. In addition, for the period prior to 1980, there have been 57 months that averaged over 85 degrees while the period since 1980 there have been only 54.

Figure #4 plots the 60 hottest months for the two periods. Clearly, the pre-modern era produced hotter monthly records. These top 60 month plots represent the extreme 14.3% of each respective period.

For CO2 context, total global CO2 emissions are listed for each period (past and modern) on figures #1 and #2. The modern era emission tonnes are higher by a factor of 5+.

The evidence could not be clearer. Huge CO2 emissions, and higher atmospheric CO2 levels, do not correlate with a greater frequency of higher monthly maximum temperature records. This is indisputable.

Does this mean there won't be new record maximum temperatures set in the future? No, it does not. But, with that said, it is highly probable that future maximum records and their frequency have absolutely zero to do with greater CO2 emissions.

Ɗaɱn those stubborn facts!

Addtional regional and modern temperature charts.

Note: Source of U.S. maximum monthly temperatures since 1895 (choose Maximum temperature; choose 1895 and 2014; choose Previous 12-months; choose June; click plot button; scroll down and click Excel icon to download data; in Excel, select period june 1920 thru june 1964 and period june 1980 thru june 2014 (these are the two 409-month periods used in charts);and then sort each period by largest to smallest monthly temperatures. Modern CO2 emission tonnes and past emission tonnes.

The Tropical Hotspot: Still Frigid After All These Years (& CO2 Emissions)

The frigid tropical hotspot continues to be a massive embarrassment to the CAGW faithful, and more importantly, the climate modelers...their prediction of a runaway tipping point in the atmosphere that would produce Venus-like temperatures is a classic example of herd-style failure by the consensus algorithms....

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Two recent studies demonstrate the absolute futility of policymakers listening to climate modelers (and their billion dollar climate models) who continually predict climate calamities - a prediction record with zero successes.

The first peer reviewed study determines that today's climate models will never be able to predict the climate. Essentially, climate models assume linear climate relationships yet the real-world climate is non-linear and chaotic - defying intermediate and long-term predictive "expertise" with predictable regularity.

The second study clearly documents the abysmal prediction failure foisted on the public and politicians by the climate modelers. The climate models have long predicted a tropical hotspot in the atmosphere due to CO2 emissions; but actual scientific research reveals that the feared, mythical, runaway "tipping point" hotspot remains non-existent.

The hotspot tipping point, per the climate modelers, is supposedly in the process of turning Earth's atmosphere into a Venus replica, making Earth uninhabitable. But is that realistically happening? 

The adjacent chart provides the indisputable, empirical evidence to answer that question unequivocally - NO!

The chart's red column is the Venus atmosphere's temperature at the 10km altitude. A conservative estimated temperature is still an incredibly hot 350°C.

In contrast, the chart's dark blueish columns show the Earth's atmosphere at the same altitude is an incredibly frigid temperature of minus 75C degrees. Yes, our tropical atmosphere is some 425 degrees colder.

Ahem....what freaking Venus-like tropical hotspot?! IT DOES NOT EXIST.

Of course, the climate moderlers stuck-on-stupid-Venus, don't mention this amazingly obvious climate fact. Instead, they focus on how Earth's tropical atomosphere is "accelerating" towards a Venus-like hotspot tipping point.

Accelerating? Barely creeping at a glacial pace would be more accurate.

Examine the chart closely. Since the beginning of the 1980's, humanity has poured some 860 billion CO2 tonnes into the atmosphere; atmospheric CO2 levels keep climbing (see yellow boxes); yet, the average tropical atmospheric temperature has essentially not budged (see red dotted baseline) over 3+ decades of modern consumer/industrial human emissions.

The solution to climate science reality and better policy? 'TRUST NO ONE CLIMATE MODEL' should be stamped on every CO2-centric climate model prediction and report that is handed to politicians and policymakers.

Then this type of anti-science insanity preached by the climate modelers would finally be D.O.A., never again to poison a public scientific debate with "runaway" catastrophic climate absurdities.

Previous climate-model postings and charts.

Note: Source of approximate 10km Venus temperature; source of approximate Earth's troposphere temperature; source of approximate tropical latitude troposphere temperatures; source of lower tropical atmosphere temperature change since 1979; source of total CO2 emission tonnes since 1979; source of peak CO2 ppm levels for each decade.

NOAA Determines U.S. Precipitation Unaffected By CO2, Extreme Climate Change Non-Existent

Depending on which climate alarmist "expert" you listen to, be it Al Gore, Tom Steyer, Obama, John Holdren or Michael Mann, each claims that the U.S. is suffering from CO2-caused extreme climate change...big problem though, NOAA empirical measurements of precipitation (snow and rainfall) prove those claims are nothing but blatant, political anti-science lies falsehoods exaggerations.....

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A prior 'C3' article documented the current normality of extreme drought across the globe.

With that said, the western U.S. is currently experiencing a very bad drought. If it's the start of another 200-year mega-drought, which plagued the area prior to the 1700's, there will be some very serious problems.

But for the entire U.S., NOAA reports that recent precipitation levels are normal - extreme high or low precipitation levels are not the norm.

The chart on the left is a plot of NOAA monthly measurements of precipitation since 1895, through June 2014. (NOAA dataset source) The black dots represent the moving 5-year (60-month) average of atmospheric CO2 levels.

The dark blue curve is the simple 60-month moving average of precipitation; the red line denotes the average monthly rainfall over the 1,434 months. As can be seen, the moving average is just about parked on top of the overall average - the declared current climate extremes purported by alarmists do not exist for the U.S. (nor for the globe as the prior article pointed out).

The total lack of precipitation extremes over the last 15+ years is completely counter to the CO2-based CAGW hypothesis that alarmists believe in fervently.

And what about other climate change "extremes" they hypothesize - well, the charts tell the real science story.

On this article's chart, the past extremes have been denoted (see color dots). Clearly, weather extremes can happen on a monthly basis, but they are rare, with no apparent association to CO2. Extended extreme precipitation levels over decades are literally non-existent in the NOAA climate record database.

Those Stubborn Facts: U.S. climate extremes of excess/minimal precipitation (rainfall and snow) are not evident in the recent climate record. The alarmist hypothesis that human CO2 causes modern precipitation extremes does not hold water, so to speak.

Previous severe weather/climate articles.

Latest Research: "Extreme" Climate Change & Recent Weather Disasters Don't Correlate

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The latest research is conclusive, and confirms previous studies from multiple authors.

===>"The absence of trends in normalized disaster burden indicators appears to be largely consistent with the absence of trends in extreme weather events. This conclusion is more qualitative for the number of people killed. As a consequence, vulnerability is also largely stable over the period of analysis."

H/T: Roger Pielke Jr

For most CAGW skeptics, this finding is not a surprise since skeptics tend to be much more knowledgeable about past weather disasters. Previous weather disasters from the early 20th century were worse in many cases, and fully documented by the mainstream press at the time.

Conclusion: Recent weather events cannot be attributed to human CO2 emissions, nor the ongoing climate change that world is experiencing. In addition, modern climate change has not revealed itself to be "extreme." Thus, no correlation between disasters and the more recent non-extreme climate change.

Additional severe weather/disaster/climate articles.

NASA Research Indicates Pre-1950 Climate Change Greater - Modern Global Warming Tepid

Per the empirical measurement evidence published by NASA, the last 15 years of temperature change is not much different than earlier, pre-modern climate change...tepid to lukewarm is about the most alarmist description that fits the CO2 doomsday-cult hysteria.....

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As almost everyone (alarmists and skeptics) agrees, climate change is continuous, accompanied by associated temperature changes. Based on the common measurement techniques utilized, over the last two decades the globe has warmed.

However, with that said, the last 15 years of global warming has really not been too impressive - so unimpressive, that scientists are debating speculating what happened to it.

In fact, when examining the moving 15-year temperature changes over the last two decades, the NASA research indicates (despite the gigantic modern human CO2 emissions) that pre-1950 global temperature changes were greater.

Yes, you read that right. When examining absolute 15-year changes in temperature, our modern warming doesn't quite measure-up to earlier warming.

The adjacent chart plots 15-year (180-month) absolute temperature changes (i.e. differences) of the two decades 1924-1944 (starting July 1924, ending June 1944); and plots the 180-month temperature changes of the two decades from July 1994 to June 2014.

As the chart indicates, both periods have similarities, but the greatest long-term global warming took place prior to 1950. The linear trends on the charts denote the continuing acceleration of 15-year warming (red straight line) for the pre-1950 era, versus the decelerating trend of our current times (green straight line), as reported by NASA scientists.

And, as can be observed, both the long-term warming and cooling extremes were greater during the pre-1950 decades. Confirming the pre-1950 weather/climate extremes is rather easy - just read the headlines from that era.

Conclusion: Modern climate and temperature change is somewhat tepid when compared to the natural extreme changes during the 1930s and 1940s. It would seem that human CO2 emissions are not causing unprecedented, accelerating extremes in modern weather and climate over recent 15-year spans, and may actually be dampening the extremes when compared to the past.

Additional modern and regional temperature charts.

Note: The above chart is comparing the 2 decades ending June 1944 versus the 2 decades ending June 2014 - both periods exhibit identifiable warming. NASA dataset used for the moving 15-year (180-month) absolute temperature difference comparison and Excel chart. Hey, don't know how to chart in Excel? It's easy to produce charts - you can do it too! Go here to learn how.

NOAA Confirms: Climate Warming Due To Temperature Fabrication, Not Empirical Measurements

An analysis of NOAA's U.S. temperature dataset confirms the existence of fake climate warming that overstates actual warming by considerable amount...documentation and surprising revelations support the growing concerns by critics that U.S. climate scientists are driven by a non-science agenda.....

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Government bureaucrats and scientists have not exactly gone out of their way to publicize the growing use of estimated temperatures,  instead of reality - actual temperature measurements.

For good reason.

Based on an examination by independent analysts, after 1990 the U.S. climate agencies chose to start replacing real-world measurements with entirely fabricated (i.e. "estimated") numbers.

Per the top chart on the left, utilization of estimated temperatures is now approaching 40%.

So, what's the problem with using NOAA's fake temperatures instead of real-world temperature measurements?

The bottom graph on the left explains the problem. The estimated temperatures produce a much greater warming trend then the actual temperature measurements.

By using estimates, government officials are able to claim bogus climate warming statistics in order to advance the scary talking points of catastrophic global warming and extreme climate change.

Deception is as simple as that, yet can be effective propaganda.

Additional govt-fabricated and modern temperature charts.

“While the planet burns” – Elites & Cronies Deny Empirical Science, Push Climate Policies To Enrich Themselves

'Climate Depot' recently highlighted a ludicrous NY Daily News editorial that is the typical fear-mongering pushed by establishment elites, eargerly published by the mainstream press in regards to global warming and climate change...the editorial's commentary of "while the planet is burning" is an opinion held by a bunch of spoiled, wealthy cronies who have served their country dishonorably by ruining the American dream for future generations and, btw, continue to propose self-serving polices that will make themselves even richer...hmmm..., or instead, maybe they really are just a bunch of scientific illiterate elites who can't be bothered with those inconvenient facts, no?..... 

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As the above paragraph suggests, it's easy to throw out rhetorical bombast in response to over-the-top CAGW doomsday B.S. - especially if the bombast is directed at wealthy elites' galactically-sized hypocrisy and crony-capitalist climate change endeavors.

By now, per the recent polling of Americans (here and here), you'd guess that the GWNs would finally forsake the rhetorical excesses as being a spectacular failed public relations campaign, but apparently not, if the NY Daily News is any indication.

Putting the bombast aside, let's continue with the analysis of those inconvenient global warming and climate change facts.

Recently, 'C3' published a few articles about the actual temperature change experienced across the globe. The key word is 'change.'

When specific temperature 'change' is examined, does it exhibit characteristics deserving of the establishment elites' commonly used fear-mongering qualifiers? Those are qualifiers meant to scare purposefully, such as: accelerating, abrupt, unequivocal, irreversible, rapid, dangerous, indisputable, irrefutable, incontrovertible and etc. Or, as in the case of the wordy wordsmith elites at the NY Daily News, "while the planet burns."

The above chart on the left (Fig. A) is from this 'C3' article, which examines the 6-month absolute temperature changes derived from the state-of-the-art satellite measurement technology. Clearly, the empirical 6-month temperature changes since 1979 do not exhibit characteristics equal to the fear-monger qualifiers, let alone the hysterical, anti-science bullshît of "planet burning."

But wait.....what if the planet really was burning, per the elites' propaganda? What would accelerating, dangerous and unequivocal temperature change look like?

Well, that would be the fabricated 6-month change chart on the right (Fig. B). Using the same time period since 1979, the temperature changes plotted represent the simulated monthly temperature anomalies increasing every single month by just a tiny amount. As a result, the 6-month temperature change curve becomes a fevered-planet exponential.

That's the face of frightening global warming - an exponential precursor to the figurative "burning planet." But the real world intrudes as Fig. A is not that precursor - NOT EVEN CLOSE.

(Tip: If the actual climate temperatures ever produced a similar exponential 6-month, or a 36-month, a 60-month, a 120-month or a 180-month temperature change chart as Fig. B, then it's time for all good skeptics to move their petro-dollar funded haciendas to tropical Antarctica.)

Now, obviously, the two above charts look entirely different. And if the climate is producing accelerating, abrupt, unequivocal, irreversible, rapid, dangerous, indisputable, irrefutable and incontrovertible global warming (i.e. "planet burning") then the 6-month change chart on the right would be reality.

But the chart on the right is not reality - the chart on the left is, which presents a fairly constant up/down of temperature change, essentially negating opposing extremes. That's how the natural climate works in regards to both short-term and long-term temperature changes.

BTW, speaking of lack of extremes...to reinforce what climate reality truly is, depending on your preferred temperature dataset, there has been a non-extreme, slight global cooling trend, from a minimum of 9+ years to 17+ years . This is not some hidden science artifact that only the climate guru-clerics know about. This has been widely discussed in peer-reviewed journals and blogs for the last few years.

Despite the overwhelming empirical evidence, the establishment's elites and mainstream media continue to publish "burning planet" falsehoods. Being completely divorced from the known climate science facts has (thank goodness) seriously undercut their credibility and trustworthiness.

Conclusions: One, the world is not "burning," with all the empirical science pointing to a globe that is experiencing a very, very modest warming cooling warming cooling. Two, "liar, liar, pants on fire" doesn't quite describe the anti-science, the anti-empirical denialism, the overall dishonesty and crony-malfeasance the elites and wealthy pursue to enrich themselves by impoverishing the rest of the world.

Extreme Climate Change: Abrupt, Accelerating & Unequivocal Global Warming - Ooops, UK Confirms Not Happening

The over-the-top predictions of catastrophic climate disaster from proponents of CAGW have become a public relations disaster for the establishment science community...the constant hyperbole about extreme climate change due to abrupt, accelerating and unequivocal global warming turns out to be without empirical, scientific merit, as the UK's recognized gold-standard global temperature dataset confirms....

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The lack of major hurricanes making direct landfall on the continental U.S. over the last 8+ years is a classic example of extreme climate change not happening as predicted.

Now, add to that the complete disappearance of statistically significant global warming - for the UK's HadCRUT4 there has been no statistically significant warming since October 1996; and for the RSS global atmosphere dataset, it has been since November 1992 - and one then begins to wonder about the incompetence of elite science.

The absence of climate significant warming by itself pretty much confirms that extreme climate change is a non-issue, deserving little priority and resources.

But, there is another view of extreme climate change that can be examined to ascertain whether it has become a modern era problem or not. This can be accomplished by examining simple 10-year absolute change events for global temperatures, both positive and negative.

By identifying the largest 20 warming events and 20 largest cooling events since 1850, the most extreme 2% of temperature swings can be placed in chronological significance. (This identification is best done with the IPCC's gold-standard, the UK's HadCRUT4 monthly dataset, which stretches back to 1850.)

The charts above provide the identification of these extreme, outlier temperature swings. (The May 2014 HC4 dataset contains 1,973 monthly observations from which 1,853 moving 10-year absolute change calculations can be derived.)

As is evident from the empirical data, the vast majority of extreme temperature swings (both warming and cooling) occur prior to 1960. Also, the charts' purple linear trend lines indicate that the extremes are shrinking (getting smaller, if you prefer) over time.  

Conclusion: Human CO2 emissions have not caused the predicted abrupt, accelerating and unequivocal global warming during the modern era, as all of the above scientific evidence attests. In addition, the lack of extreme climate change disasters and shrinking temperature swings, in relation to the past, actually indicate there may be an inverse relationship with growing CO2 emissions and atmospheric levels.

Now that would truly be mind-boggling, and help explain why "consensus" scientists are so befuddled and at a loss. Of course, stranger things have happened, such as the recent admission by consensus establishment science that they have been horribly wrong (for three decades, yikes!) about dietary cholesterol and saturated fat causing heart disease.

However, with all the above stated, this does not mean that climate change is not happening; that human activities have no influence on weather and climate; nor that global warming won't occur in the near future.

Note: UK's HadCRUT4 2014 satellite dataset used in Excel to calculate 10-year absolute (i.e. arithmetic difference) temperature changes and linear trends for above charts. Hey, don't know how to chart in Excel? It's easy to produce charts - you can do it too! Go here to learn how.

Connect The Dots: Is CO2 Turning Earth's Atmosphere Into A Venus Cauldron As Predicted?

Are humans turning Earth into another Venus, an inhabitable planet with temperatures hotter than your Weber grill on the 4th of July? Well...when the empirical dots are connected the scary Venus fate for Earth goes poof....

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In a previous post, empirical observations documented the lack of both short-term and long-term warming of the atmosphere.

Another approach to assessing the atmosphere's temperature change is to examine the 10-year changes in the lower troposphere. The graph on the left plots such changes.

Using a satellite dataset that contains 426 monthly temperature measurements, 306 moving 10-year changes can be calculated. This graph plots those 306 data-points (the proverbial 'dots'), plus the cumulative growth in CO2 levels over the same period.

Visually, it is obvious the 10-year temperature changes were dominated by increasing values up till the early 2000's. After that, the 10-year changes decreased consistently, turning from positive to negative. The graph depicts the global atmosphere actually cooling over recent time.

The long increase in 10-year temperature change, and then its subsequent decrease, is confirmed by both the 3-year simple average curve (aqua) and the fitted trend curve (6th order polynomial).

The pale green curve (another fitted trend curve, 6th order) represents the unabated, relentless cumulative growth of atmospheric CO2 levels.

Conclusion: Earth is not turning into Venus. The experts' predictions that human CO2 emissions would turn Earth's atmosphere into a simmering Venus lookalike, resulting in "boiling" oceans, is now substantiated as a crackpot, global warming bogosity - pure anti-science alarmism that was promulgated by establishment science.

Does the above mean that Earth's atmosphere will never warm again? Nope, it will indeed continue to have phases of warming and cooling just as it did in the past, sans Venus conditions, though.....because that is what climates do, just naturally.

Additional modern and historical temperature charts.

Note: RSS June 2014 satellite dataset used in Excel to calculate 10-year temperature changes. fitted trends and 3-year average in the above chart. Hey, don't know how to chart in Excel? It's easy to produce charts - you can do it too! Go here to learn how.

CO2 Emission Reductions: Since Kyoto Protocol Of 1997, U.S. Outperforms Major World Regions

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The just released BP Statistical Review includes an updated historical record of CO2 emissions across the world, through 2013.

While China's CO2 emissions have almost tripled since the Kyoto Protocol of 1997, the U.S. emissions have decreased about 2%.

That U.S. reduction actually is superior to all the world's major regions and entities, as identified by the BP research report. This U.S. reduction (see adjacent chart) took place even though the U.S. was one of the few countries not to sign the 'Protocol.'

With that said, any CO2 emission reduction by the U.S. is being immediately offset by the huge increases happening in other parts of the world. As a result, neither U.S. citizens, nor the world's, are benefiting from any U.S. CO2 reduction efforts.

To make the U.S. CO2 reduction aspirations even more bleak, if America could slash its emissions by 50% for each of the next 85 years, the net impact on global temperatures by 2100AD, at best, might be all of a measly -0.09°C.

That type of impact would require U.S. emissions to drop by some 3 billion metric tonnes per year, which based on today's technology, would likely amount to at least an annual $1 trillion expense (assumes a ludicrously low $400 per tonne cost to immediately replace all the lost fossil fuel utilization, needed new infrastructure, replacement transportation vehicles and g*d knows what else to survive).

Previous greenhouse-gas postings and charts.

State-Of-The-Art Satellite Technology Provides Proof: CO2's Almost Non-Existent Global Warming Influence

Whether its impact is viewed from a short-term or long-term perspective, the CO2 trace gas has had little, if any, influence on the atmosphere's temperatures...satellite measurements provide the proof that the CO2-causes-global-warming hypothesis is not climate reality.....   (follow up article is here)

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It has been predicted by the climate "experts" that human CO2 emissions would cause the world's atmosphere to warm dangerously, producing catastrophic, world-ending climate disasters.

Some 30+ years later, the advanced satellites circling the globe, 24/7, provide the empirical evidence that the "expert" predictions were of no substance, nor merit.

The adjoining graph is a plot of short-term temperature changes since 1979, along with the cumulative growth of atmospheric CO2 levels. Specifically, the 6-month temperature changes show little, if any, impact from the continuous growth of the atmospheric trace gas, CO2. [Clarification: chart's temperature plot is a moving, full 6-month temperature difference calculated from global RSS monthly anomalies, currently 426 anomalies in dataset]

In fact, the overall trend (aqua line) of 6-month changes is actually negative - an indication that abrupt, accelerating dangerous global warming of the atmosphere is non-existent. [Clarification: Aqua line is a linear trend produced by Excel]

Now, that is the short-term. What about the long-term?

A recent study by a group of pro-catastrophic global warming scientists¹ determined that the human CO2 warming influence on atmosphere temperatures would be obvious over 17-years of satellite measurements. These are the scientists who claim we have experienced catastrophic global warming, with world climate disasters being imminent.

And what has happened, over this long-term span specified by these scientists?

Over the last 204 months (that's 17 years through June 2014), the atmosphere temperatures have actually exhibited a global cooling trend, not warming. The per century trend is only a -0.36°C. Despite this small number, it still represents a cooling trend, opposite of consensus predictions.

Whether short or long-term, the state-of-the-art empirical satellite evidence is not only obvious, it is both climate and statistically significant: CO2 emissions have not had a significant influence (warming or cooling) on atmospheric temperatures. For objective science, this means that the CO2-centric anthropogenic global warming hypothesis is essentially invalidated, as it is currently understood.

(1) Study. Scientists involved: Ben D. Santer, C. Mears, C. Doutriaux, P. Caldwell, P. J. Gleckler, Tim M. L. Wigley, Susan Solomon, N. P. Gillett, D. Ivanova, Tom R. Karl, J. R. Lanzante, G. A. Meehl, P. A. Stott, K. E. Taylor, P. W. Thorne, M. F. Wehner, F. J. Wentz

Note: RSS June 2014 satellite dataset used (finally!...updated with RSS June 2014 Excel spreadsheet), including 6-month temperature changes and Excel linear trend in the above chart. Hey, don't know how to chart in Excel? It's easy to produce charts - you can do it too! Go here to learn how.

NOAA Confirms: Huge CO2 Emissions Have Zero Impact On U.S. Maximum Temperatures

The UN's IPCC claim that large modern consumer/industrial CO2 emissions are causing maximum temperatures to increase across the globe proves to be without any empirical and scientific merit.....NOAA's NCDC division documents U.S. maximum temperatures are exhibiting a declining trend, not catastrophic "global warming"...

The adjacent chart is a fairly simple plot of the 20 hottest U.S. months, with the corresponding atmospheric CO2 level (black dots) for the respective month.

As the latest NOAA empirical dataset clearly indicates:

===> The hottest U.S. months took place during the 1930s, a very low CO2 period

===> The huge growth of atmospheric CO2 levels after 1949 did not produce the predicted increase of catastrophic, ever higher temperatures

===> The average maximum record temperature prior to 1950 (the 10 highest months of 1895-1949) was higher than the average maximum record temperature post 1950 (the 10 highest months of 1950-2014)

===> Despite the massive human CO2 emissions, maximum temperatures reveal a cooling trend of highs since 1950

This NOAA factual evidence for the continental U.S. confirms what has previously reported for maximum temperatures across the globe.

Note1: My bad. Found dumb error on original chart. Now corrected. No corrections to above text required.

Note2: NOAA U.S. temperature dataset and Excel used to produce above chart. Hey, don't know how to chart in Excel? It's easy to produce charts - you can do it too! Go here to learn how.

Additional global, regional and historical temperature charts.