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
“It doesn’t matter what is true,
it only matters what people believe is true.”
– Paul Watson,
co-founder of Greenpeace
“Climate Change will result in a catastrophic global sea level
rise of seven meters. That’s bye-bye most of Bangladesh,
Netherlands, Florida and would make London the new Atlantis.”
– Greenpeace International
Patrick Moore (born 1947) is a Canadian activist, and former president of Greenpeace Canada. Since leaving Greenpeace, Moore has criticized the environmental movement for what he sees as scare tactics and disinformation, saying that the environmental movement “abandoned science and logic in favor of emotion and sensationalism.” (Wikipedia)
A MUST SEE 5 mins by Patrick Moore PhD, on the “man-made climate change” scam…
Dr Moore Related :
- Confessions of a ‘Greenpeace Dropout’ to the U.S. Senate on climate change | Climatism
- MUST READ Greenpeace founder delivers powerful annual lecture, praises carbon dioxide – full text | Climatism
- Think You Know Greenpeace? Look Again | Climatism
- Peer into the Heart of the IPCC, Find Greenpeace | C;imatism
- Patrick Moore: Greenpeace has made itself the sworn enemy of all life on Earth | Climatism
- MUST SEE : GREENPEACE Co-Founder – No Evidence Global Warming Is Caused By Humans | Climatism
Hard-earned US taxpayer funds diverted to third-world countries (often run by tin-pot dictators) via the unelected bureaucratic behemoth – the United Nations. What possibly could go wrong?!
Donald J Trump – protecting US incomes with accountability and transparency for its careful use where needed. And yet Trump’s the bad guy?!
Yeah, this is why President Trump said
“We will cease honoring all non-binding agreements”, and “we will stop contributing to the green climate fund”.
“I can not in good conscience support a deal that harms the United States”.
“The bottom line is that the Paris Accord is very unfair to the United States”.
“This agreement is less about climate and more about other countries getting a financial advantage over the United States”.
The United States contributed $1 billion to the global Green Climate Fund, but the world’s top polluters contributed nothing, David Asman reported.
via Fox news here
“We’ve got to ride this global warming issue.
Even if the theory of global warming is wrong,
we will be doing the right thing in terms of
economic and environmental policy.“
– Timothy Wirth,
President of the UN Foundation
“The common enemy of humanity is man.
In searching for a new enemy to unite us, we came up
with the idea that pollution, the threat of global warming,
water shortages, famine and the like would fit the bill. All these
dangers are caused by human intervention, and it is only through
changed attitudes and behavior that they can be overcome.
The real enemy then, is humanity itself.”
– Club of Rome,
premier environmental think-tank,
consultants to the United Nations
“The Earth has cancer
and the cancer is Man.”
– Club of Rome,
Mankind at the Turning Point
Re-posted from Real Science :
Going from 300 to 400 PPM CO2 is the equivalent of packing an extra ten people into the Superdome.
Hansen says that it is going to kill us all.
Please see also : Bureaucratic Dioxide | CACA
Climatism Links :
- NATURE STUDY Confirms Global Warming Stopped 15 Years Ago | CACA
- Peer into the Heart of the IPCC, Find Greenpeace | CACA
- IPCC SHOCK NEWS : Himalayan glaciers to melt (again) by 2035 | CACA
- UN-Settled Science
- Sea Level Rise | CACA
- Connect The Dots On Climate Change … Alarmism | CACA
- 44th Pacific “Sinking Islands” Extortion Forum | CACA
- 97% of climate models say that 97% of climate scientists are wrong | CACA
- Bureaucratic Dioxide
- Modelling Climate Alarmism
- Europe’s Green Energy Basket Case Is Barack Obama’s Dream | CACA
- One Of The More Illuminating Articles You May Ever Read On Global Warming | CACA
- SHOCKING NEWS! Arctic Summers Ice-Free in a Few Days! | CACA
- IPCC In Complete Denial That The Sun Is Causing Global Cooling | CACA
- Climate money: Monopoly science « JoNova (Judith Curry IPCC Update) | CACA
- Global Warming Theory ~ Circular reasoning at its best | CACA
Quote source : The Green Agenda