Archive
My Solar Cycle 25 Amplitude Prediction
Solar Cycle 25 will peak somewhat lower than the current one (SC24) but far higher than the nothingness currently predicted (see here).
My prediction is based on the fact that predictions are hard especially about the future and doubly especially when they imply a wholesale change compared to the present.
If Freud Had Met Climate Catastrophists…
Some quick rewording on an old statement by Sigmund Freud, referred to by Gordon Marino on the NYT:
The climatology of catastrophic anthropogenic global warming (cAGW) is not opposed to science, it behaves itself as if it were a science, and to a certain extent it makes use of the same methods; but it parts company with science, in that it clings to the illusion that it can produce a complete and coherent picture of the future of the Earth’s climate. Its methodological error lies in the fact that it over-estimates the epistemological value of its computer-based operations… But cAGW has no immediate influence on the great majority of mankind; it interests only a small number even of the thin upper stratum of intellectuals, while all the rest find it beyond them.
A Bovine Solution To Seasonal Forecasting
(the following has been translated and adapted from an article in Italian by Peppe Caridi of Meteoweb)
Is the European Summer coming to an abrupt end? That’s what looks like according to the yaks of South Tyrol, already back to their winter home in Solda having come down from the area around the “Città di Milano” mountain hut. According to local journalist Ezio Danieli that’s “an unequivocal sign that we are going to get cold and snow“.
For a bit of background, let’s take a step back to 26 years ago and the arrival in Solda, South Tyrol, Italy of several yaks, animals typical of the Himalayas. What happened is that during their 1983 climbing of the Cho Oyu (8,201m, 29,906ft), Reinhold Messner and Paul Hanny were helped by local cattle carrying materials to their base camp.
Messner and Hanny returned in 1985 and for the first time brought the herd of yaks to the “Città di Milano” mountain hut.. The animals remained there until the first snowfall, then returned by themselves down to the valley below, to their stables.
Since then, every Summer in early July Reinhold Messner and Paul Hanny accompany the group of Tibetan animals up to the Madriccio/Madritchspitze mountain,
surrounded by crowds of tourists and onlookers from around the world. Up the Ortles/Ortler ramps, Messner leads the herd of yaks (see at the bottom of this link the photos by Bruno Pileggi) to a spectacular alpine transhumance that ends spontaneously, every year between late August and early September when, with the arrival of the first cold and the first snow, the cattle return to the valley on their own.
This year they have returned before mid-August, and that had never happened so early since 1985! After all in the past weeks there hasn’t been much warm and heat up there, and besides the cool temperatures, thunderstorms are occurring almost on a daily basis.
Messner too is surprised by the behavior of the animals: “Normally, the descent to the valley means that their season up in the mountains is over and winter is coming, or at least the first snowfalls of the Autumn. It must be said however that at the foot of the Madriccio mountain, as I have personally verified in the past few days, the grass is still plenty even if the cold has arrived alongside the first snowflakes. Anyways, the “signal” is clear, let’s see what will happen in the coming days“.
Nuke The Toxic Humans!
Recent entries from the Warmist camp:
- Genghis Khan was good regarding CO2 emissions, in particular due to his mass-killing attitude
- Nuclear war is good for global warming, as it reverses it for a while (no prob there, we can start a new war when needed)
- Exploding people including children is good for action against global warming/CO2 emissions/climate change
Who’s going to join the dots and push the appropriate nuclear button, for the good of the planet of course?
Addendum to Skeptic’s Dictionary: Hidden Persuaders Of Anthropogenic Global Warming
(original here of course, with plenty of links to explore each dictionary entry below in depth)
(the text outside < blockquote > is (mostly) mine)
hidden persuaders: A term used by Geoffrey Dean and Ivan Kelly (2003) to describe affective, perceptual, and cognitive biases or illusions that lead to erroneous beliefs.
A NOTE TO THOSE OF AGW-BELIEVING ATTITUDE:
The hidden persuaders sometimes seem to affect people in proportion to their intelligence: the smarter one is the easier it is to develop false beliefs. There are several reasons for this: (1) the hidden persuaders affect everybody to some degree; (2) the smarter one is the easier it is to see patterns, fit data to a hypothesis, and draw inferences; (3) the smarter one is the easier it is to rationalize, i.e., explain away strong evidence contrary to one’s belief; and (4) smart people are often arrogant and incorrectly think that they cannot be deceived by others, the data, or themselves
And now for some examples:
ad hoc hypothesis: An ad hoc hypothesis is one created to explain away facts that seem to refute one’s belief or theory. Ad hoc hypotheses are common in paranormal research and in the work of pseudoscientists. It is always more reasonable to apply Occam’s razor than to offer speculative ad hoc hypotheses.
AGW example: The discovery that aerosols have cooled the Earth just when the Earth was cooling, miraculously declining their action exactly when the Earth was warming due to CO2 emissions.
AGW example: The discovery that heavy (winter) snow and cold temperatures are exactly caused by temperature increases
affect bias: Our judgment regarding the costs and benefits of items is often significantly influenced by a feeling evoked by pictures or words not directly relevant to the actual cost or benefit
AGW example: Justifying reduction in CO2 emissions by way of how “green” things could become, and civilization “sustainable” in “harmony” with nature.
apophenia: Apophenia is the spontaneous perception of connections and meaningfulness of unrelated phenomena. “The propensity to see connections between seemingly unrelated objects or ideas most closely links psychosis to creativity … apophenia and creativity may even be seen as two sides of the same coin”. In statistics, apophenia is called a Type I error, seeing patterns where none, in fact, exist.
AGW example: The propensity to see Anthropogenic Global Warming at work in each and every (bad) thing that happens anywhere on Earth, including in earthquakes
autokinetic effect: The autokinetic effect refers to perceiving a stationary point of light in the dark as moving
AGW example: The incredible inability of past and present temperature measures to record the actual values, leading to contemporary researchers having to continuously adjust the figures (lowering the old ones, increasing the new ones)
availability error: availability heuristic, determining probability “by the ease with which relevant examples come to mind” (Groopman 2007: p. 64) or “by the first thing that comes to mind” (Sutherland 1992: p. 11)
AGW example: The IPCC declaring in 2007 that tens of thousands of indicators were all compatible to global warming, even if the overwhelming majority of those indicators was about Europe alone
backfire effect: The “backfire effect” is a term coined by Brendan Nyhan and Jason Reifler to describe how some individuals when confronted with evidence that conflicts with their beliefs come to hold their original position even more strongly
AGW example: AGWers patting each other in the back about climate science remaining totally unscathed by the Climategate e-mails
change blindness: Change blindness is the failure to detect non-trivial changes in the visual field.
AGW example: The obsession with computing linear trends, making it impossible even to fathom the step-function behaviors (=”tipping points”) the very same AGWers like to talk about
Clever Hans phenomenon: A form of involuntary and unconscious cuing
AGW example: Journalist AGWers crowding RealClimate to know how long to count for
Clever Linda phenomenon: A form of involuntary and unconscious cuing
AGW example: Climate scientists writing to journalists making sure they conform, because fortunately, the prestige press doesn’t fall for this sort of stuff, right?
clustering illusion: The clustering illusion is the intuition that random events which occur in clusters are not really random events
AGW example: All the global village idiots that will tell the world how climate change is upon us, as shown by the year’s news, rather than by relying on properly conducted scientific research capable to isolate climate-change effects from others such as poverty
cognitive dissonance: Cognitive dissonance is a theory of human motivation that asserts that it is psychologically uncomfortable to hold contradictory cognitions. The theory is that dissonance, being unpleasant, motivates a person to change his cognition, attitude, or behavior. What distinguishes the chiropractor’s rationalization from the cult member’s is that the latter is based on pure faith and devotion to a guru or prophet, whereas the former is based on evidence from experience. Neither belief can be falsified because the believers won’t let them be falsified: Nothing can count against them. Those who base their beliefs on experience and what they take to be empirical or scientific evidence (e.g., astrologers, palm readers, mediums, psychics, the intelligent design folks, and the chiropractor) make a pretense of being willing to test their beliefs. They only bother to submit to a test of their ideas to get proof for others. That is why we refer to their beliefs as pseudosciences. We do not refer to the beliefs of cult members as pseudoscientific, but as faith-based irrationality. The chiropractors’ misguided belief is probably not due to worrying about their self-image or removing discomfort. It is more likely due to their being arrogant and incompetent thinkers, convinced by their experience that they “know” what’s going on, and probably assisted by communal reinforcement from the like-minded arrogant and incompetent thinkers they work with and are trained by. They’ve seen how AK works with their own eyes. They’ve demonstrated it many times. If anything makes them uncomfortable it might be that they can’t understand how the world can be so full of idiots who can’t see with their own eyes what they see!
AGW example: Thousands and thousands of words written by journalists, scientists and activists about anthropogenic global warming, and not one of them indicating what if anything could falsify…anthropogenic global warming
law of truly large numbers (coincidence): The law of truly large numbers says that with a large enough sample many odd coincidences are likely to happen.
AGW example: Romm scouring the planet’s press agencies to list all sorts of disasters that might somehow be connected to anthropogenic global warming
cold reading: Cold reading refers to a set of techniques used by professional manipulators to get a subject to behave in a certain way or to think that the cold reader has some sort of special ability that allows him to “mysteriously” know things about the subject
AGW example: The popularity of climate models’ ensembles among politicians looking for something to confirm they need to be voted for, and in the process getting convinced science can really tell us something about the climate of 2100
communal reinforcement: Communal reinforcement is the process by which a claim becomes a strong belief through repeated assertion by members of a community
AGW example: The tendency of warmist websites to censor dissenting comments away, leaving readers (believers) with the impression there is really a huge huge number of them, and just a handful of nasty skeptics
confabulation: A confabulation is a fantasy that has unconsciously emerged as a factual account in memory. A confabulation may be based partly on fact or be a complete construction of the imagination
AGW example: The decade-long fight to remove from collective memory the substantial agreement among scientists about global cooling (potentially, an ice age), a consensus that lasted at least between 1972 and 1975.
confirmation bias: Confirmation bias refers to a type of selective thinking whereby one tends to notice and to look for what confirms one’s beliefs, and to ignore, not look for, or undervalue the relevance of what contradicts one’s beliefs
AGW example: Briffa’s uncanny ability to avoid for years any mention of the misbehaving trees he had himself published a paper about, in the Yamal saga
file-drawer effect: The file-drawer effect refers to the practice of researchers filing away studies with negative outcomes. Negative outcome refers to finding nothing of statistical significance or causal consequence, not to finding that something affects us negatively. Negative outcome may also refer to finding something that is contrary to one’s earlier research or to what one expects
AGW example: Extreme lack of interest among prominent climate scientists to publish anything (not even an Op-Ed) about the “travesty” that was (is) their inability to explain why temperatures (actually, the averages of the global temperature anomaly) have not risen since 1998
Forer effect: The Forer effect refers to the tendency of people to rate sets of statements as highly accurate for them personally even though the statements could apply to many people
AGW example: The worldwide phenomenon that sees most Ministers and Prime Ministers announce that their own particular country is being affected by climate change at twice or more the planetary average
gambler’s fallacy: The gambler’s fallacy is the mistaken notion that the odds for something with a fixed probability increase or decrease depending upon recent occurrences
AGW example: Tamino’s (?) absurdist blog about the probability of having consecutive hot periods being astronomically low
hindsight bias: Hindsight bias is the tendency to construct one’s memory after the fact (or interpret the meaning of something said in the past) according to currently known facts and one’s current beliefs. In this way, one appears to make the past consistent with the present and more predictive or predictable than it actually was.
AGW example: The Met Office discovering in January how it had forecasted a cold December in October, as shown by a statement nobody did read, and nobody has read
AGW example: The silly notion that Anthropogenic Global Warming has been consensually recognized in the 1970’s or even earlier
inattentional blindness: Inattentional blindness is an inability to perceive something that is within one’s direct perceptual field because one is attending to something else
AGW example: Lancet publishing an incredibly misleading Climate Change report with little mention of the huge difference in the number and type of deaths of people during cold and warm snaps
AGW example: The complete lack of interest about linking the generalized Northern Hemispheric cold and the silent Sun
magical thinking: According to anthropologist Dr. Phillips Stevens Jr., magical thinking involves several elements, including a belief in the interconnectedness of all things through forces and powers that transcend both physical and spiritual connections. Magical thinking invests special powers and forces in many things that are seen as symbol. One of the driving principles of magical thinking is the notion that things that resemble each other are causally connected in some way that defies scientific testing (the law of similarity)
AGW example: CO2’s mysterious ability to free the Arctic from the ice, and to increase the amount of ice in Antarctica, plus its long hand into anything and everything that ever happens and has bad consequences.
motivated reasoning: Motivated reasoning is confirmation bias taken to the next level. Motivated reasoning leads people to confirm what they already believe, while ignoring contrary data. But it also drives people to develop elaborate rationalizations to justify holding beliefs that logic and evidence have shown to be wrong
AGW example: The Anthropogenic Global Warming’s crowd supernatural swiftness in explaining every (bad) phenomenon as a consequence of human CO2 emissions
nonfalsifiability: Scientific theories not only explain empirical phenomena, they also predict empirical phenomena. One way we know a scientific theory is no good is that its predictions keep failing. Predictions can’t fail unless a theory is falsifiable. Some pseudoscientific [theories] can’t be falsified because they are consistent with every imaginable empirical state of affairs. Karl Popper noted that psychoanalytic theory, including Freud’s theory of the Oedipus complex, is pseudoscientific because they seem to explain everything and do not leave open the possibility of error. Even contradictory behaviors are appealed to in support of the theory.
AGW example: Thousands and thousands of words written by journalists, scientists and activists about anthropogenic global warming, and not one of them indicating what if anything could falsify…anthropogenic global warming
positive-outcome (publication) bias: Positive-outcome (or “publication”) bias is the tendency to publish research with a positive outcome more frequently than research with a negative outcome. Negative outcome refers to finding nothing of statistical significance or causal consequence, not to finding that something affects us negatively. Positive-outcome bias also refers to the tendency of the media to publish medical study stories with positive outcomes much more frequently than such stories with negative outcomes
AGW example: The amount of time some highly-functioning minds have spent to justify scientifically the reasons for the “hide the decline”
post hoc fallacy: The post hoc ergo propter hoc (after this therefore because of this) fallacy is based upon the mistaken notion that simply because one thing happens after another, the first event was a cause of the second event. Post hoc reasoning is the basis for many superstitions and erroneous beliefs
AGW example: The Anthropogenic Global Warming’s crowd supernatural completeness in explaining every (bad) phenomenon as a consequence of human CO2 emissions
pragmatic fallacy: The pragmatic fallacy is committed when one argues that something is true because it works and where ‘works’ means something like “I’m satisfied with it,” “I feel better,” “I find it beneficial, meaningful, or significant,” or “It explains things for me
AGW example: The inane request to publish via peer-review a scientific alternative to mainstream Anthropogenic Global Warming theory because “it works”. One doesn’t need to be a leader or a tailor to see if the Emperor is naked.
regressive fallacy: The regressive fallacy is the failure to take into account natural and inevitable fluctuations of things when ascribing causes to them
AGW example: The general agreement that natural variability doesn’t count much for Anthropogenic Global Warming, even if the very same people go on to claim temperatures have not increased in a decade because of natural variability
representativeness error: In judging items, we compare them to a prototype or representative idea and tend to see them as typical or atypical according to how they match up with our model. The problem with the representativeness heuristic is that what appears typical sometimes blinds you to possibilities that contradict the prototype
AGW example: The sterile obsession with studying climate science by climate models alone
retrospective falsification: D. H. Rawcliffe coined this term to refer to the process of telling a story that is factual to some extent, but which gets distorted and falsified over time by retelling it with embellishments
AGW example: The abuse of Arrhenius’ “greenhouse gas” works, with the first one continuously mentioned exactly as the second one gets forgotten, being a more sober rethinking of the original ideas
selection bias: Selection bias comes in two flavors: (1) self-selection of individuals to participate in an activity or survey, or as a subject in an experimental study; (2) selection of samples or studies by researchers to support a particular hypothesis
AGW example: Mann’s obviously irrelevant pick-and-choose of which series to use for the Hockey Stick
selective thinking: Selective thinking is the process whereby one selects out favorable evidence for remembrance and focus, while ignoring unfavorable evidence for a belief
AGW example: Any post at Skeptical Science, with its incredible list of peer-reviewed all-mutually-consistent scientific papers
self-deception: Self-deception is the process or fact of misleading ourselves to accept as true or valid what is false or invalid. Self-deception, in short, is a way we justify false beliefs to ourselves
AGW example: Connolley et al publishing an article about a “Myth” of global cooling consensus in the 1970’s despite providing themselves ample evidence to support the same “myth”
shoehorning: Shoehorning is the process of force-fitting some current affair into one’s personal, political, or religious agenda
AGW example: Also known as “decorating the Christmas tree”…at every climate negotiation for the UN, thousands of people try to add their pet project to the cause, including “forest protection, poverty alleviation, water equity, women’s and indigenous rights”
subjective validation: Subjective validation is the process of validating words, initials, statements, or signs as accurate because one is able to find them personally meaningful and significant
AGW example: Anthropogenic Global Warming causing a (temporary?) shutdown in critical thinking among those worried about getting the world “greener”
sunk-cost fallacy: When one makes a hopeless investment, one sometimes reasons: I can’t stop now, otherwise what I’ve invested so far will be lost. This is true, of course, but irrelevant to whether one should continue to invest in the project. Everything one has invested is lost regardless. If there is no hope for success in the future from the investment, then the fact that one has already lost a bundle should lead one to the conclusion that the rational thing to do is to withdraw from the project
AGW example: The UN’s COP bandwagon, moving a lot of people a lot of times in a lot of different locations (but never in Moldova or North Korea, for some reason) even if everybody agrees it will never mean anything substantial
anecdotal (testimonial) evidence: Testimonials and vivid anecdotes are one of the most popular and convincing forms of evidence presented for beliefs in the supernatural, paranormal, and pseudoscientific
AGW example: Monbiot’s famous February floral musings brought to the world as evidence of anthropogenic global warmings, back when Februarys were still warm
Texas-sharpshooter fallacy: The Texas-sharpshooter fallacy is the name epidemiologists give to the clustering illusion. Politicians, lawyers and some scientists tend to isolate clusters of diseases from their context, thereby giving the illusion of a causal connection between some environmental factor and the disease. What appears to be statistically significant (i.e., not due to chance) is actually expected by the laws of chance
AGW example:Pretty much any Al Gore speech
wishful thinking: Wishful thinking is interpreting facts, reports, events, perceptions, etc., according to what one would like to be the case rather than according to the actual evidence
AGW example:Pretty much any warmist blog or statement
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Obviously there’s much better examples out there, so do send them across if you see any…
Greenfyre Loses The Plot
I’ve just been honored by Greenfyre dedicating his very first blog in a long time to a couple of blog posts in my very successful “1970s Global Cooling Consensus” series. There’s the usual litany of insults, of course, yawn, and that’s fully compatible with the idea that poor Greenfyre and his acolytes have a strong urgency to repeat the same old concepts to themselves, somehow deluding themselves they’ll be stronger concepts.
In the real world, meanwhile, there is a peer-reviewed paper stating “By the early 1970s, when Mitchell updated his work (Mitchell 1972), THE NOTION OF A GLOBAL COOLING TREND WAS WIDELY ACCEPTED, albeit poorly understood“. I wrote that sentence in big bold letters a few days ago, in a post sadly forgotten by all-singing all-dancing shouting, debate-challenged Greenfyre.
Well, if Greenfyre has an argument with that peer-reviewed article, he might want to exchange a couple of words with Connolley himself, thank you.
Oh, the bother.
Martin Luther, Here I Come!
The “AGW is logically impossible” list (aka Global Warming Miracles) has suddenly jumped to 52 items, doubling in size in a little less than three weeks. As commented at the Italian version of the page, I am now only 43 items away from putting a poster at the Castle Church in Wittenberg, Germany.
Or perhaps I should find out where the bulletin boards are, at the University of East Anglia…
Another “Global Cooling in the 1970s” Avalanche (Laughter, It Will Bury Them)
From Italy to the USA. Thanks to Google. And Google. And Google.
Funniest of the lot: from the Milwaukee Sentinel, Jan 20, 1979. By Dick West of United Press International:
“At the recent meeting of the American Association for the Advancement of Science…the consensus seemed to be that, rather than experience either a warming trend or a cooling trend, we shall have both. Although not at the same time, fortunately.”
Really, try to read that article all without a chuckle or ten.
A New Treasure Trove Of 1970s “Global Cooling” Articles
Italian newspaper “La Stampa” has just put online its 1867-today archive (yes, it IS in Italian). What better chance (well, for me at least…) to explore the evolution of “global cooling” thinking in the 1970s beyond the usual English-speaking newsmedia? With the added bonus of plenty of names and other key words to use as…keywords for further research.
Very briefly: in the 15 articles I have found so far:
- the popularity of scientists predicting an ice age is very clear up to the Feb 1979 meeting of the World Meteorological Organization
- “upcoming ice age” is the meme du jour up to 1985 at least
- there is a warmist slant in 1990 but strangely, the arguments of discussion are more or less the same still central to the debate in 2010
This collection strongly indicates that in Italy, like elsewhere, the average reader of newspapers would have had all the reasons to believe in a “global cooling consensus” for much of the 1970’s and even later.
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Here’s the article list:
1. June 22, 1976 (n.145, p.14): “Entro cento anni avremo una era glaciale” – “Within a hundred years we’ll get an ice age” by Umberto Oddone
- Mentions Reid Bryson
- “not all scientists agree”
- a Cesare Emiliani from the University of Miami investigates 700,000 years of sea-shells Oxygen isotopes
- icebreaker “Glacier” gets “stuck in the Atlantic”
2. June 27, 1976 (n.150, p.9): “Tra ghiacci e siccita'” – “Between ice and drought” by Umberto Oddone
- Earth is “having a fever”
- Bryson again
- Cesare Emiliani and sea-shells analysis, again
3. Oct 19, 1976 (n.229, p.21): “Fra pochi anni inverni freddissimi – In Siberia spariranno i cereali?” – “Very cold winters within few years – will grains disappear from Siberia?” by Bruno Ghibaudi
- 30 years of cooling trend
- Not a new ice age but hard consequences expected for the USSR
- Mentions Prok Nikola Volkov, Director, Arctic and Antarctic Research Institute, Leningrad
- Kara Sea temperature having dropped from -10C to -13C in 30 years
- Nearby polar seas, decreases of 1 or 2C
- Sea lanes to Murmansk and Arkangelsk closed by the ice in the early 1900’s, open in 1941-45, now 60% closed again
- Two teams of French scientists complete research in the Antarctic.
- Oxygen-isotope analysis indicates climate cycles, with a new cold peak in 3000AD and a warm peak in 9000AD
- Mentions human influence, possible apocalyptic consequences
- Recommends an international program to control climate
4. Feb 14, 1977 (n.29, p.3): “E’ giunta l’era glaciale” – “The ice age has come” by Alberto Rapisarda
- Bryson again. Must have been very popular.
5. Jan 3, 1978 (n.1, p.3): “Si torna all’era glaciale?” – “A return to the ice age?” by Umberto Oddone
- Mentions a new book “Climatologia” by Prof. Mario Pinna
- Suggests getting warm clothes ready, for a few decades or for thousands of years
6. Apr 14, 1978 – (n.85, p.15): “Aiuto, arriva l’era glaciale” – “Help, the ice age is coming” (unsigned article)
- “Many meteorologists” “convinced” about upcoming little ice age
- Climate for 90% of the time warmer than at present
- Causes of the cooling: disagreement
- According to Juri Izrael, Hydrometer Service Director for the USSR: deforestation, landscape changes
- According to James Hays of Columbia University and Nicholas Shackelton of Cambridge University: orbital changes
- Hurd Willett of MIT mentioned as expecting lower temps
- “Many meteorologists” of the opinion that “it’s all due to changes in the Sun”
7. Apr 27, 1978 (n.95, p.9): “Siamo alla soglia dell’era glaciale?” – “Are we on the edge of an ice age?” by Umberto Oddone
- Mentions “18 known American climatologists” and a series of articles on Die Welt
- North Polar ice cap increases from 1971 to 1978 by 12%
- Antarctic ice mass increase from 1966 to 1967 by 10%
- Global temperature down in 30 years by 0.5C
- Mentions Bryson expecting a return to the little ice age
- Mentions other climatologists as far more pessimist (“big” ice age) – work by the Impact Team headed by climatologist William Colby, former head of the CIA – “snowblitz”
- Mentions Dansgaard
- Mentions Calder as reporting the opinion of “not few” scientists
8. Jan 4, 1979 (n.3, p.4): “Sta per cominciare un’era glaciale – secondo meteorologi giapponesi” – “An ice age is coming – according to Japanese meteorologists” by press agency Ansa-Reuter
- Mentions Junkichi Nemoto – University of Saitama – saying a “little ice age” is already underway
- Mentions WMO conference in Feb 1979 in Geneva
9. Jan 9, 1979 (n.8, p.28): “Ma perche’ parlare di era glaciale?” – “And why all the talk of an ice age?” by Stefano Pavan
- Mentions climate wars
- Hubert Lamb, Alastair Woodroffe: snowblitz (snow accumulating by not completely melting by the end of the summer), 50cm/year
10. Feb 19, 1979 (n.48, p.3): “Cambia il nostro clima – Il mondo va verso una nuova era glaciale?” – “Our climate is changing – Is the world going towards an ice age?” by Fabio Galvano
- Mentions the WMO Conference in Geneva
- “400 climatologists” meeting to discuss how humanity can adapt to climate changes
- Conference President – Robert White
- Mentions some scientists as believing that Earth is moving towards an ice age
- Mentions most scientists as believing that Earth is getting warmer due to human activities
- Greenhouse effect from a sulphuric acid/ammonium sulphide “polar fog”
- Mentions Stephen Schneider as expecting 2C-3C of increase in the temperate zones in 2050, as CO2 concentrations double. Mentions William Kellogg as expecting another doubling by 2100, with +6C
- Mentions +20C at the Poles
- Mentions the Amazon turning into a Sahara (Harry Knowles)
- Geoengineering in the USSR proposed by climatologist Federov
11. Jan 20, 1982 (n.16): “Tranquilli, non e’ un’altra era glaciale” – “Keep cool, there’s no ice age coming” by James Wagner, National Weather Service
- No ice age
12. Apr 21, 1982 (n.25, p. 3): “Questo freddo di aprile farà’ scendere i ghiacciai?” – “This cold in April will expand the glaciers?” by Piero Bianucci
- Detailed temperature graph for the last 80,000 years
- Mentions winter 81-82 as colder than 77’s, considered “coldest in the century” by “American climatologist”
- Walter Orr Roberts and sun/drought link
- Mentions Stephen Schneider, according to whom the “turnaround year” from a warming trend to a cooling one was 1972, a year with drought in the USSR, floods in Pakistan, and a delayed start of the monsoon season.
- Mentions Lamb describing a “butterfly effect” on climate
13. Jan 30, 1985 (n.155, p. 2): “Dietro l’angolo c’e’ un’era glaciale?” – “Is there an ice age behind the corner?” by Stefano Pavan
- Nicholas Shackleton, Cambridge University – shells analysis indicates a descent into an ice age – for 5,000 years, an accumulation of 50cm/year – “snowblitz”
- Mentions Danish glaciologists as saying that summer insolation in the Northern Hemisphere has come down, and it’s lower than when 90,000 years ago there was a sudden cooling episode
- Mentions Nigel Calder’s “The Weather Machine” with a long list of countries that would fall against the climate catastrophe
14. Oct 10, 1990 (n.436, p. 21): “Il clima cambia, ecco gli indizi” – “The climate changes, here’s the evidence” by Angelo Tartaglia
and
15. Oct 10, 1990 (n.436, p. 21): “I dati sono insufficienti” – “There is not enough data” by Stefano Pavan
- Both articles could have been written yesterday, including skeptics at the MIT and computer models at the UK’s Met Office
“Huge Puzzle…On A Planet Where We Thought We Know Everything”
NASA Finds Shrimp Beneath Antarctica Ice – 600 Feet Below Antarctic Ice Where Nothing Complex Should Live, NASA Catches A Curious Shrimp
Of course this will soon to be shown to mean scientists have grossly overestimated the amount of CO2 in the past, that it’s worse than we thought, and that climate change is pushing curious shrimps and foot-long jellyfish on the edge of extinction.
“Smart Planet” It Ain’t
I hereby nominate Dana Blankenhorn’s blog “That cold snap was global warming in action” as the dumbest of 2010 (so far).
The question now is: has that entry by itself removed any meaning from the website’s name? How can a place called “Smart Planet” get it so spectacularly wrong?
Darwin (AGW) Awards vs. The Tragedy Of Cold-Related Deaths
(note: I wrote most of the below last night…as it happens, Indur M. Goklany has just published a blog on similar topics, “Winter kills: Excess Deaths in the Winter Months” on WUWT)
Tragic as it is, the death at the age of 70 of Canon Hereward Cooke on Dec 15 in Copenhagen after having cycled in a snowstorm is the stuff of a Darwin Award. One might even be forgiven if thinking of it as foretold by the near-misses of failed Polar kayaker Lewis Pugh in September 2008, and of the cold and starving Catlin Survey team almost stranded in atrocious Arctic weather in April 2009.
Is this a way to confirm Timpanogos/Ed Darrell‘s suggestion that “you guys cheer at train wrecks and hit-and-run auto-pedestrian accidents, too“? I think not (even if I should thank Ed for comparing the lesser Milliband and Gordon Brown to train wrecks and hit-and-run accidents). There is something enormously serious about climate-related deaths. Compared to that, the misadventures of True (AGW) Believers getting themselves and others in trouble for almost no reason at all, well, those become laughable indeed.
Remember the infamous 2003 Summer Heatwave in Europe? Wikipedia claims it killed “more than 37,451” people (the Earth Policy Institute sums up a toll of “more than 52,000“) across the Continent. Now take “excess winter mortality” in England and Wales alone, and despair: according to the Office for National Statistics, in 2008/2009 the number of additional deaths “compared with the average for the non-winter period” was 36,700.
One can only imagine a grand total of excess winter deaths for the whole of Europe in the hundreds of thousands. And that happens every single year, whilst the 2003 Heatwave is just an exceptional event that caused for example a total of 2,139 excess deaths in England and Wales.
Notably, in England and Wales even the 2003/2004 winter saw more than 20,000 excess deaths compared to a non-winter period that included…the August 2003 heatwave.

Excess winter mortality, England and Wales, 1999/2000 to 2008/2009 (original from the UK "Office for National Statistics")
Given the way things are shaping up at the moment, the 2009/2010 numbers will likely be in the 30,000-40,000 range too…I am perfectly sure if we had tens of thousands of excess deaths during a hot summer in the UK, even the rocks would be yelling out about the perils of Global Warming. But since those people are dying because of the cold, one might have to guess it must be alright..
1970s Global Cooling Consensus A Fact Of History – My Article In Spiked Online
From “Same fears, different name? – Maurizio Morabito uncovers a 1974 CIA report showing that the ‘scientific consensus’ then was that the world was cooling” published on Dec 10 in Spiked Online
[…] We have a ‘widely accepted [by the scientific community]…global cooling trend’, at least judging from Mitchell’s work in 1972; doubts about that growing in the same scientific community from 1975/1976, as per Damon and Kunen’s paper; but not early enough to prevent Newsweek from publishing its 1975 article, one that even mentions a certain Dr Murray Mitchell. That means that pieces of the global cooling puzzle do suggest that cooling was a widely-held view in the 1970s.
Admittedly, such an agreed view did not last the whole decade: rather, it concerned the 1972 to 1975 period. Says who? Says the CIA, in a unique report I was recently able to re-discover in the British Library […]
This article is much longer than the Spectator’s and contains all the evidence one should need to establish that there was a scientific consensus on global cooling in the period 1972-1975.
World Exclusive: CIA 1974 Document Reveals Emptiness of AGW Scares, Closes Debate On Global Cooling Consensus (And More…)
An eye-opening “global cooling consensus” CIA document dated 1974 has just been re-discovered in the British Library by Yours Truly and is extensively mentioned today in the (printed) pages of The Spectator (UK) and Il Foglio (Italy).
(updated 20091203 – 1042am GMT – the (suitably degraded) scan of the Spectator article is at the bottom of this blog)
(updated 20091203 – 1105am GMT – HOLD IT-THERE IS A PROBLEM WITH THE SCRIBD LINK!! – ANOTHER ONE WILL BE PROVIDED SHORTLY – the CIA document is now online thanks to Guido Guidi and Climate Monitor)
(updated 20091203 – 1143am GMT – the PDF of the CIA document is now available online thanks to Guido Guidi and Climate Monitor)
“A Study of Climatological Research as it Pertains to Intelligence Problems” will make quite an embarrassing reading, especially for:
- the most obdurate catastro-warmists (when they will notice that almost all AGW scares are a search-and-replace job from “cooling” to “warming”), and
- the history deniers fixated on ‘demonstrating’ that a scientific consensus about Global Cooling in the 1970’s were a ‘myth'(*)
And there is more (much more), from ever-improving climate models promising to become good in a few years’ time to the unsettling apparent ease with which Government agencies then (as now) could get scientists to agree on whatever they needed them to agree on.
Nobody aware of the CIA document’s contents should be able to avoid a good chuckle after reading any of the current AGW reports on famine, starvation, refugee crises, floods, droughts, crop and monsoon failures, and all sorts of extreme weather phenomena; on climate-related major economic problems around the world; on Africans getting in climate troubles first; and so on and so forth.
Why? Because it is all too clear that those scares cannot be real, since they have already been mentioned verbatim in all their dramatic effect, but about Global Cooling.
The whole lot of them, they are just empty threats, instruments of doom-and-gloom policy manipulation with no relation to reality.
It is deeply ironic that it takes a 35-year-old document, available on the web so far only in title, to show the absolute vacuity of the vast majority of pre-COP15 reports and studies. It is time to ditch everything we hear about collapsing ice sheets, disappearing glaciers, species extinctions, and each and every “it’s worse than we thought” report by “scientists”.
It is time to become climate adults.
As I wrote for The Spectator:
This might be the most important lesson of the 1974 report on global cooling: that we need to grow up, separate climatology from fear, and recognise – much as it pains politicians and scientists – that our understanding of how climate changes remains in its infancy.
(stay tuned for the full text of the Spectator article, and the PDF of the PDF of the CIA document)
(*) Anybody thinking about Thomas C. Peterson, William M. Connolley, and John Fleck’s largely mistitled “The Myth of the 1970s Global Cooling Scientific Consensus” (Bulletin of the American Meteorological Society Volume 89, Issue 9, September 2008, pp 1325-1337)? Well, think again after reading this little gem of theirs:
By the early 1970s, when Mitchell updated his work (Mitchell 1972), the notion of a global cooling trend was widely accepted, albeit poorly understood
As I wrote a little more than a year ago: “Widely accepted”: check. “Global cooling”: check.. There was a global cooling consensus among scientists, at least up to 1974. And it went on to appear in Newsweek, The Washington Post, The New York Times and many more media outlets around the world, at least up to 1976.
CASE CLOSED.
UPDATED: This is the scanned Spectator article
Climate Is Weather When It Is Not Climate, Weather Is Climate When It Is Not Weather. Or Not?
or…”Climate Belief In Disarray”
Front-page article today by Andrew C Revkin on the International Herald Tribune about the problem of “selling” any urgency for warming-stopping CO2 emission cuts to the public in a non-warming planet (now that that concept has been accepted even by the hardest climate integralist).
Parts of what is reported by Revkin is interesting as it appears there is no shortage of scientists providing all sorts of opinions on why the world has not been warming as expected. Trouble is, if the recent 10-year-long set of observations showing “non-warming” cannot be used to falsify AGW, then no 10-year-long set of any observation showing anything can be used to demonstrate AGW either.
Therefore there is no meaning in the just-released climate forecasts by the Met Office talking about “the odds of a 15-year pause” after analysing “how often decades with a neutral trend in global mean temperature occurred in computer modelled climate change simulations” (my emphasis).
In fact, some are fond to say that climate is a 30-year-long average of weather. Well, if that is true, all we should be scientifically able to talk about with any amount of knowledge, is the climate trends for… 1979.
Everything else is (interesting, but just) speculation.
ps Dr Mojib Latif says he “gives about 200 talks to the public, business leaders and officials each year“. There are 365 days, in most years. At what times during the year is then “climate science” studied at the Leibniz Institute of Marine Sciences at the University of Kiel, Germany? And shall we worry about the absence of private life for AGW scientist-advocates?
pps Shame to Revkin for publishing this absurdist remark by Joe Romm: “We need all the unmuffled warnings we can get“. Why? Because Romm is a known “muffler” himself.
Swanson’s AGW Song, or How At RealClimate, It’s Always Naivety Time…
Sometimes I ask myself if the RealClimate guys understand the implications of everything they publish on their site.
For example some time ago Gavin Schmidt more or less told the whole world that to him observations were of little interest apart than as a way to improve climate models (thereby denying the very possibility that climate models could be demonstrated false, under any circumstance).
Now it’s the turn of a guest blog by Kyle Swanson, encouraged and published by Raymond T. “Raypierre” Pierrehumbert. The stated intent of the blog is to show that Swanson and Tsonis’ recent paper about “Has the climate recently shifted?” has “very little” to do with Global Warming, of the anthropogenic variety obviously. But its actual practical consequences are more interesting.
(1) Andy Revkin through Roger Pielke Jr.’s blog notes that Swanson and Tsonis take off the steam yet again from anybody and everybody that tries to “portray global warming as an unfolding catastrophe here and now“.
That is, with RealClimate in tow, and after Swanson and Tsonis, we can yell out loud and clear that the scientific consensus says that all AGW-related troubles that we could be concerned about, they belong to the future.
Repeat with me: AGW as a matter of grave concern for the whole of humanity, is not happening. That is, there is no scientific justification at all to discuss AGW as an issue for the present instead of properly, as a risk management question involving some decades in the future.
(2) All this discussions about the recent “pause in warming” (in Swanson’s words…as if it had any meaning given the above) are ammunitions that will be used to argue against AGW once the warming resumes (eventually, it will…). If 10 years can’t say much in a direction, they cannot say much in the other direction either.
(3) In other words, all scientific discussions in climatology should confine themselves to the climate of the end of the 1970’s. Anything that has happened after that, it’s by definition too early to talk about.
(3) Raypierre tries at length to justify Tsonis’s words published in an interview. Among those:
“if we don’t understand what is natural, I don’t think we can say much about what the humans are doing. So our interest is to understand — first the natural variability of climate — and then take it from there. So we were very excited when we realized a lot of changes in the past century from warmer to cooler and then back to warmer were all natural“
I am afraid all “comments were taken out of context” (Raypierre’s defense) are excuses simply demolished by Swanson’s writing that:
“humanity is poking a complex, nonlinear system with GHG forcing – and […] there are no guarantees to how the climate may respond“
Repeat with me: We have little clue about the Earth’s climate will respond to anything, be it natural or man-made. The final result might be a cooling, a warming, or no much change at all.
And so about AGW, we should be spending time reflecting about the opportunity of reducing that “poking”, not on idiotic multidecadal projections of various degrees of warming.
=======
Let me finish by noticing two details. First of all, in Swanson’s words presumably approved by Raypierre/RC, Global Warming (AGW) is now “the century-scale response to greenhouse gas emissions“. And I thought it was multidecadal? Not any longer: even 50 years of global cooling will be compatible with AGW.
But to conclude on a high note: the anti-skeptic RC filters of old don’t appear to have been heavily used this time. Who knows, it might even be a way to show that the RC folks are thinking of getting rid of their aburd fear for debating.
But don’t hold your breath about that…especially when they will realize what the stuff they publish actually means.
Cold Weather Kills More Than Flu
UPDATE: A rebuttal of a major point in the Lancet&UCL “Managing the health effects of climate change” report will be published in this blog by tomorrow
I have already blogged about an article on the BMJ (2000;321:670-673) showing that across Europe, “all regions [show] more annual cold related mortality than heat related mortality“: i.e. cooling kills more than warming.
But there’s more…again from the BMJ (2002;324:89-90):
[In South East England], of 1265 annual excess winter deaths per million over the past 10 years, 2.4% were due to influenza either directly or indirectly
In other words, up to 97.6% of winter deaths could be avoided were the climate warmer. The authors go as far as to suggest that
measures to reduce cold stress offer the greatest opportunities to reduce current levels of winter mortality
Wouldn’t that be a good idea as a goal for geoengineering?
Guest Blog: Earth On The Brink Of An Ice Age
A guest blog by writer and researcher Gregory Fegel (gregoryfegel AT hevanet DOT com). Provided “as-is” in order to enrich the debate, whatever my opinions on the topic are.
Surely everybody believing in using the Precautionary Principle will agree with these words?
the very real threat of the approaching and inevitable Ice Age, which will render large parts of the Northern Hemisphere uninhabitable, is being foolishly ignored.
Earth on the Brink of an Ice Age
The earth is now on the brink of entering another Ice Age, according to a large and compelling body of evidence from within the field of climate science. Many sources of data which provide our knowledge base of long-term climate change indicate that the warm, twelve thousand year-long Holocene period will rather soon be coming to an end, and then the earth will return to Ice Age conditions for the next 100,000 years.
Ice cores, ocean sediment cores, the geologic record, and studies of ancient plant and animal populations all demonstrate a regular cyclic pattern of Ice Age glacial maximums which each last about 100,000 years, separated by intervening warm interglacials, each lasting about 12,000 years.
Most of the long-term climate data collected from various sources also shows a strong correlation with the three astronomical cycles which are together known as the Milankovich cycles. The three Milankovich cycles include the tilt of the earth, which varies over a 41,000 year period; the shape of the earth’s orbit, which changes over a period of 100,000 years; and the Precession of the Equinoxes, also known as the earth’s ‘wobble’, which gradually rotates the direction of the earth’s axis over a period of 26,000 years. According to the Milankovich theory of Ice Age causation, these three astronomical cycles, each of which effects the amount of solar radiation which reaches the earth, act together to produce the cycle of cold Ice Age maximums and warm interglacials.
Elements of the astronomical theory of Ice Age causation were first presented by the French mathematician Joseph Adhemar in 1842, it was developed further by the English prodigy Joseph Croll in 1875, and the theory was established in its present form by the Czech mathematician Milutin Milankovich in the 1920s and 30s. In 1976 the prestigious journal “Science” published a landmark paper by John Imbrie, James Hays, and Nicholas Shackleton entitled “Variations in the Earth’s orbit: Pacemaker of the Ice Ages,” which described the correlation which the trio of scientist/authors had found between the climate data obtained from ocean sediment cores and the patterns of the astronomical Milankovich cycles. Since the late 1970s, the Milankovich theory has remained the predominant theory to account for Ice Age causation among climate scientists, and hence the Milankovich theory is always described in textbooks of climatology and in encyclopaedia articles about the Ice Ages.
In their 1976 paper Imbrie, Hays, and Shackleton wrote that their own climate forecasts, which were based on sea-sediment cores and the Milankovich cycles, “… must be qualified in two ways. First, they apply only to the natural component of future climatic trends – and not to anthropogenic effects such as those due to the burning of fossil fuels. Second, they describe only the long-term trends, because they are linked to orbital variations with periods of 20,000 years and longer. Climatic oscillations at higher frequencies are not predicted… the results indicate that the long-term trend over the next 20,000 years is towards extensive Northern Hemisphere glaciation and cooler climate.”
During the 1970s the famous American astronomer Carl Sagan and other scientists began promoting the theory that ‘greenhouse gasses’ such as carbon dioxide, or CO2, produced by human industries could lead to catastrophic global warming. Since the 1970s the theory of ‘anthropogenic global warming’ (AGW) has gradually become accepted as fact by most of the academic establishment, and their acceptance of AGW has inspired a global movement to encourage governments to make pivotal changes to prevent the worsening of AGW.
The central piece of evidence that is cited in support of the AGW theory is the famous ‘hockey stick’ graph which was presented by Al Gore in his 2006 film “An Inconvenient Truth.” The ‘hockey stick’ graph shows an acute upward spike in global temperatures which began during the 1970s and continued through the winter of 2006/07. However, this warming trend was interrupted when the winter of 2007/8 delivered the deepest snow cover to the Northern Hemisphere since 1966 and the coldest temperatures since 2001. It now appears that the current Northern Hemisphere winter of 2008/09 will probably equal or surpass the winter of 2007/08 for both snow depth and cold temperatures.
The main flaw in the AGW theory is that its proponents focus on evidence from only the past one thousand years at most, while ignoring the evidence from the past million years — evidence which is essential for a true understanding of climatology. The data from paleoclimatology provides us with an alternative and more credible explanation for the recent global temperature spike, based on the natural cycle of Ice Age maximums and interglacials.
In 1999 the British journal “Nature” published the results of data derived from glacial ice cores collected at the Russia’s Vostok station in Antarctica during the 1990s. The Vostok ice core data includes a record of global atmospheric temperatures, atmospheric CO2 and other greenhouse gases, and airborne particulates starting from 420,000 years ago and continuing through history up to our present time.
The graph of the Vostok ice core data shows that the Ice Age maximums and the warm interglacials occur within a regular cyclic pattern, the graph-line of which is similar to the rhythm of a heartbeat on an electrocardiogram tracing. The Vostok data graph also shows that changes in global CO2 levels lag behind global temperature changes by about eight hundred years. What that indicates is that global temperatures precede or cause global CO2 changes, and not the reverse. In other words, increasing atmospheric CO2 is not causing global temperature to rise; instead the natural cyclic increase in global temperature is causing global CO2 to rise.
The reason that global CO2 levels rise and fall in response to the global temperature is because cold water is capable of retaining more CO2 than warm water. That is why carbonated beverages loose their carbonation, or CO2, when stored in a warm environment. We store our carbonated soft drinks, wine, and beer in a cool place to prevent them from loosing their ‘fizz’, which is a feature of their carbonation, or CO2 content. The earth is currently warming as a result of the natural Ice Age cycle, and as the oceans get warmer, they release increasing amounts of CO2 into the atmosphere.
Because the release of CO2 by the warming oceans lags behind the changes in the earth’s temperature, we should expect to see global CO2 levels continue to rise for another eight hundred years after the end of the earth’s current Interglacial warm period. We should already be eight hundred years into the coming Ice Age before global CO2 levels begin to drop in response to the increased chilling of the world’s oceans.
The Vostok ice core data graph reveals that global CO2 levels regularly rose and fell in a direct response to the natural cycle of Ice Age minimums and maximums during the past four hundred and twenty thousand years. Within that natural cycle, about every 110,000 years global temperatures, followed by global CO2 levels, have peaked at approximately the same levels which they are at today.
About 325,000 years ago, at the peak of a warm interglacial, global temperature and CO2 levels were higher than they are today. Today we are again at the peak, and near to the end, of a warm interglacial, and the earth is now due to enter the next Ice Age. If we are lucky, we may have a few years to prepare for it. The Ice Age will return, as it always has, in its regular and natural cycle, with or without any influence from the effects of AGW.
The AGW theory is based on data that is drawn from a ridiculously narrow span of time and it demonstrates a wanton disregard for the ‘big picture’ of long-term climate change. The data from paleoclimatology, including ice cores, sea sediments, geology, paleobotany and zoology, indicate that we are on the verge of entering another Ice Age, and the data also shows that severe and lasting climate change can occur within only a few years. While concern over the dubious threat of Anthropogenic Global Warming continues to distract the attention of people throughout the world, the very real threat of the approaching and inevitable Ice Age, which will render large parts of the Northern Hemisphere uninhabitable, is being foolishly ignored.
— Gregory F. Fegel
How To Link Record Cold And Snow To Global Warming…
…in a few easy steps!
- If a winter is warmer than the average, claim that as evidence that the globe is warming and the climate is changing, because winters are supposed to be cooler
- If the following winter is warmer than the average, go back to 1.
- If the following winter is average or colder, claim that as evidence that the globe is warming and the climate is changing, because even if winters were initially supposed to be as cold as the average, since recent winters have been warmer than that, then an average or cooler winter is a change in climate (and it is due to global warming because everything is)
Sadly, the above is not an example of sarcasm, but the unvarnished truth of some unbelievable debate currently at play in Italy. I may (or may not) translate the whole thing, but for now I’ll simply point to the record-breaking snowfalls in Piedmont and the Vallée d’Aoste, Northwestern Italy, where :
- the village of Balme has seen 170cm, 5’7″ of snow in just 24h (previous record in that part of the Alps: 115cm, 3’9″, again in Balme in 1933)
- Limone Piemonte has been buried in more than 200cm, 6’7″ of snow
- Champoluc, Vallée d’Aoste, is likely to be evacuated because of too much snow
I’ll also post quite spectacular pictures when I find the time. Couple of videos may suffice for now:
How I Learned to Stop Worrying and Love the Climate Change
(yes, it has already been used: here, here, here, here, here)
Will human civilization survive the giant climate shifts that will be caused by our SUVs (or by any other cardinal sin brought about by the comforts of modern life)? And what about humanity?
Who knows?
But one thing I am now more sure of. The biosphere will do just fine. Plenty of animals and plants and bacteria and archeas and viruses will prosper if the world will get warmer, if it will get cooler, or if it will continue as before (whatever the meaning of “continue as before” is).
And it’s all written loud and clear in scientific, peer-reviewed literature. For example:
Jeffrey P. Severinghaus and Edward J. Brook, “Abrupt Climate Change at the End of the Last Glacial Period Inferred from Trapped Air in Polar Ice“, Science, 29 October 1999: Vol. 286. no. 5441, pp. 930 – 934 DOI: 10.1126/science.286.5441.930 (Abstract)
The last glacial period was terminated by an abrupt warming event in the North Atlantic ~15,000 years before the present, and warming events of similar age have been reported from low latitudes […] the Greenland Summit warmed 9 ± 3°C over a period of several decades, beginning 14,672 years ago […]
Jørgen Peder Steffensen et al., “High-Resolution Greenland Ice Core Data Show Abrupt Climate Change Happens in Few Years“, originally published in Science Express on 19 June 2008, Science 1 August 2008: Vol. 321. no. 5889, pp. 680 – 684 DOI: 10.1126/science.1157707 (Abstract, free Full Text)
The last two abrupt warmings at the onset of our present warm interglacial period, interrupted by the Younger Dryas cooling event, were investigated at high temporal resolution from the North Greenland Ice Core Project ice core […] A northern shift of the Intertropical Convergence Zone could be the trigger of these abrupt shifts of Northern Hemisphere atmospheric circulation, resulting in changes of 2 to 4 kelvin in Greenland moisture source temperature from one year to the next.
Let’s also keep in mind that 8 ice ages and 8 warm ages have happened during the last 800,000 years.
What can we conclude?
- Abrupt climatic changes happen quite often
- There is a sizable amount of evidence of climate changes more abrupt than anything experienced in recorded human history. In other words, present-day temperature changes are neither special nor unprecedented
- All existing species have gone through several rounds of those abrupt climatic changes. ADDENDUM: And since there is no evidence for periodic widespread extinction episodes linked in any way to the changes in climate, we can rest assured that the overwhelming majority of species adapt to cooler and warmer environments
- With or without humanity, another climate change is bound to happen. And another. And another. (etc etc)
Hence, there is very little sense in all the cries about global warming being the destroyer of life on Earth, or of any species in particular.
Note that Humanity itself has survived everything that has been thrown at it. If anybody is seriously worried, rather than overcomplicated and resultless negotiations on carbon emissions, they should dedicate all their efforts to mantaining civilization (=adaptation).
And if we take the LIA into account: who can seriously think that present-day humanity has feebler defences than 1650’s?