CLIMATE change alarmists conveniently ‘deny’ the existence of the 1970’s “global cooling” scare because such panic, a mere 40 years ago, threatens the legitimacy of the current “global warming” scare.
HOWEVER, climate experts and government agencies of the day were indeed warning of impending climate doom and that we must take immediate “action” to avoid catastrophe.
WARMING alarmists rebut the 1970’s global cooling scare with claims that the phenomenon wasn’t “peer-reviewed” or that a “consensus” of “97%” of “scientists” didn’t agree. However, it doesn’t take Einstein to realise that the fashionable eco-scare of the day was indeed very real…
IN 1976 the CIA warned the cooling climate would bring – “drought, starvation, social unrest and political upheaval” :
C.I.A. WARNINGFrom a correspondent in Washington
MAJOR world climate changes were under way that would cause economic and political upheavals “almost beyond comprehension”, an internal report of the Central Intelligence Agency has warned the US Government.
“The new climatic era brings a promise of famine and starvation to many areas of the world”, the report warns.
The report, which contends that the Climate changes began in 1960, is based on a study by Mr Reid Bryson of the University of Wisconsin.
Its basic premise is that the world’s climate is cooling and will revert to conditions prevalent between 1600 and 1850 — when the earth’s population was less than 1,000 million and its rural, pre-industrial era civilisations were largely capable of feeding themselves.
The report, which- was concerned with possible political and economic threats the United States could expect from such drastic events, said the starvation and famine would lead to social unrest and global migration of populations.
AN IMPORTANT and timely read Via The Times – MATT RIDLEY (Climatism bolds)
RECORD cold in America has brought temperatures as low as minus 44C in North Dakota, frozen sharks in Massachusetts and iguanas falling from trees in Florida. Al Gore blames global warming, citing one scientist to the effect that this is “exactly what we should expect from the climate crisis”. Others beg to differ: Kevin Trenberth, of America’s National Centre for Atmospheric Research, insists that “winter storms are a manifestation of winter, not climate change”.
Forty-five years ago a run of cold winters caused a “global cooling” scare. “A global deterioration of the climate, by order of magnitude larger than any hitherto experienced by civilised mankind, is a very real possibility and indeed may be due very soon,” read a letter to President Nixon in 1972 from two scientists reporting the views of 42 “top” colleagues. “The cooling has natural causes and falls within the rank of the processes which caused the last ice age.” The administration replied that it was “seized of the matter”.
In the years that followed, newspapers, magazines and television documentaries spoke of the coming ice age. The CIA reported a “growing consensus among leading climatologists that the world is undergoing a cooling trend”.
This alarm about global cooling is largely been forgotten, but it has not entirely gone away. Valentina Zharkova of Northumbria University has suggested that a quiescent sun presages another Little Ice Age like that of 1300-1850. I’m not persuaded. Yet the argument that the world is slowly slipping back into a proper ice age after 10,000 years of balmy warmth is in essence true. Most interglacial periods, or times without large ice sheets, last about that long, and ice cores from Greenland show that each of the past three millennia was cooler than the one before.
However, those ice cores, and others from Antarctica, can now put our minds to rest. They reveal that interglacials start abruptly with sudden and rapid warming but end gradually with many thousands of years of slow and erratic cooling. They have also begun to clarify the cause. It is a story that reminds us how vulnerable our civilisation is. If we aspire to keep the show on the road for another 10,000 years, we will have to understand ice ages.
The oldest explanation for the coming and going of ice was based on carbon dioxide. In 1895 the Swede Svante Arrhenius, one of the scientists who first championed the greenhouse theory, suggested that the ice retreated because carbon dioxide levels rose, and advanced because they fell. If this were true, then industrial emissions could head off the next ice age. There is indeed a correlation in the ice cores between temperature and carbon dioxide, but inconveniently it is the wrong way round: carbon dioxide follows rather than leads temperature downward when the ice returns.
A Serbian named Milutin Milankovich, writing in 1941, argued that ice ages and interglacials were instead caused by changes in the orbit of the Earth around the sun. These changes, known as eccentricity, obliquity and precession, sometimes combined to increase the relative warmth of northern hemisphere summers, melting ice caps in North America and Eurasia and spreading warmth worldwide.
IN 1976 Nicholas Shackleton, a Cambridge physicist, and his colleagues published evidence from deep-sea cores of cycles in the warming and cooling of the Earth over the past half million years which fitted Milankovich’s orbital wobbles. Precession, which decides whether the Earth is closer to the sun in July or in January, is on a 23,000-year cycle; obliquity, which decides how tilted the axis of the Earth is and therefore how warm the summer is, is on a 41,000-year cycle; and eccentricity, which decides how rounded or elongated the Earth’s orbit is and therefore how close to the sun the planet gets, is on a 100,000-year cycle. When these combine to make a “great summer” in the north, the ice caps shrink.
Game, set and match to Milankovich? Not quite. The Antarctic ice cores, going back 800,000 years, then revealed that there were some great summers when the Milankovich wobbles should have produced an interglacial warming, but did not. To explain these “missing interglacials”, a recent paper in Geoscience Frontiers by Ralph Ellis and Michael Palmer argues we need carbon dioxide back on the stage, not as a greenhouse gas but as plant food.
The argument goes like this. Colder oceans evaporate less moisture and rainfall decreases. At the depth of the last ice age, Africa suffered long mega-droughts; only small pockets of rainforest remained. Crucially, the longer an ice age lasts, the more carbon dioxide is dissolved in the cold oceans. When the level of carbon dioxide in the atmosphere drops below 200 parts per million (0.02 per cent), plants struggle to grow at all, especially at high altitudes. Deserts expand. Dust storms grow more frequent and larger. In the Antarctic ice cores, dust increased markedly whenever carbon dioxide levels went below 200 ppm. The dust would have begun to accumulate on the ice caps, especially those of Eurasia and North America, which were close to deserts. Next time a Milankovich great summer came along, and the ice caps began to melt, the ice would have grown dirtier and dirtier, years of deposited dust coming together as the ice shrank. The darker ice would have absorbed more heat from the sun and a runaway process of collapsing ice caps would have begun.
All of human civilisation happened in an interglacial period, with a relatively stable climate, plentiful rainfall and high enough levels of carbon dioxide to allow the vigorous growth of plants. Agriculture was probably impossible before then, and without its hugely expanded energy supply, none of the subsequent flowering of human culture would have happened.
That interglacial will end. Today the northern summer sunshine is again slightly weaker than the southern. In a few tens of thousands of years, our descendants will probably be struggling with volatile weather, dust storms and air that cannot support many crops. But that is a very long way off, and by then technology should be more advanced, unless we prevent it developing. The key will be energy. With plentiful and cheap energy our successors could thrive even in a future ice age, growing crops, watering deserts, maintaining rainforests and even melting ice caps.
More Must Read Matt Ridley :
- WIND TURBINES Are Neither Clean Nor Green And They Provide Zero Global Energy | Climatism
- A Must Read : The Climate Wars’ Damage to Science | Climatism
- A must watch – Greening the Planet – Dr. Matt Ridley | Climatism
- THE TIMES : The sceptics are right. Don’t scapegoat them | Climatism
- Must Read : Matt Ridley – Why Nobody Ever Calls The Weather Normal
- Dialing Back the Alarm on Climate Change | Climatism
- A warming planet is helping humans | Climatism
“THAT earth’s climate changes, and even now maybe changing quite rapidly, is widely recognized. The questions facing worried experts: are we warming the atmosphere of our planet irreversibly with our industry, automobiles, and land clearing practices? What sort of weather will our children and our grandchildren know? On the answers may rest the fate of nations and millions of people.”
SOUND like the all too familiar talking points of a circa 2017 warming alarmist?
NOT quite! The (edited) paragraph was from 1976, printed in NatGeo during the perceived man-made “global cooling” apocalypse.
SAME fears, different scare!
Read the full post by WUWT guest blogger Doug Ferguson…
Guest essay by Doug Ferguson
Having moved from Minnesota to Alaska this past summer, we have been making the rounds of thrift shops, stores and other venues to restock our home with things we left behind to reduce our moving costs.
Before heading out to one of our recent forays, I caught up on the news on the well known climate blog, “Watts Up With That” and read the 10/39/17 article, How Google and MSM Use “Fact Checkers” to Flood Us with Fake Claims by Leo Goldstein. You should read it. The link is here
The main example was Time magazine, but it made me think of another publication that has more subtly switched gears over the past 40 years or so to maintain the sense of impending climate doom. This is the venerable National Geographic, which currently is in full global warming alarm mode.
Therefore it was with great…
View original post 1,109 more words
DEEP within human nature there are certain types of people who yearn for catastrophe, they yearn to have significance in their lives believing that theirs is the time when the chickens are coming home to roost and everything is going to go tits up.
THE biggest selling environmental books in history, predict the mass destruction of the planet. Rachel Carson’s 1962 international bestseller “Silent Spring” predicted mass cancer from plant pesticides and DDT. Paul Ehrlich’s “The Population Bomb” 1968, argued on malthusian lines that population explosion would mean mass starvation around the world. People buy this stuff. They lap it up and books like this sell in droves, in a way that more reasonable books that say “hang on, lets look at the facts”, don’t.
THIS short YouTube video via our friends @Carbongate needs no introduction, and is a must watch..
1970’s Global Cooling (Climate Change) Eco-scare related :
- THE Climate Change Farce Explained By Two Expert “Scientists” | Climatism
- The 1970’s Global Cooling Compilation – looks much like today | Climatism
- BBC – Real risk of a Maunder minimum ‘Little Ice Age’ | Climatism
- 40 Years Since Climate Scientists Warned Us! The New Ice Age Is Going To Starve Us To Death | Climatism
- “In Searching For A New Enemy To Unite Us, We Came Up With The Threat Of Global Warming” | Climatism
- Cooling On The Warming: Now Warnings Of A Mini Ice Age | Climatism
- 1974 Shock News : CIA Said Global Warming Was A Good Thing | Real Science
MORE 1970′s Global Cooling Scare Related :
- Feds Alarmed By Global Cooling in 1974 | Climatism
- CIA 1974 National Security Threat : Global Cooling/Excess Arctic Ice Causing Extreme Weather | Real Science
- 1974 Shock News : CIA Said Global Warming Was A Good Thing | Real Science
- 1975 : Climatologists Wanted Permission To Melt The Arctic To Stop Disastrous Climate Change | Real Science
- 1972 : UN Scientists Wanted To Melt The Arctic By Spreading Soot On It | Real Science
- 1974 : NCAR Called Global Cooling The “New Norm” And Blamed Climate Disasters On It | Real Science
- 1970s Global Cooling Alarmism
- The New Crisis : The Same As The Old Crisis | Climatism
- 1922 US Government Shock News : Radical Change In Arctic Climate – Glaciers Gone | Climatism
- 1970s Global Cooling Scare | Real Science
- Every major climate organization endorsed the ice age scare, including NCAR, CRU, NAS, NASA – as did the CIA.
- 21 Jul 1976 – C.I.A. WARNING Changes to climate to bring upheaval
- Climate Change And Its Effect On World Food (1974)
- TIME – Weather – The Big Freeze