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ENVIRONMENT AND JUNK SCIENCE

Scientists puzzle through effect of ‘deep solar minimum’ on earth’s atmosphere By Thomas Lifson

There haven’t been any sunspots for the last 44 days, and some scientists believe that the sun is entering a period called a “deep solar minimum,” with unpredictable, but potentially devastating effects. But don’t worry: even if we don’t know what’s going to happen over the next couple of years, it is still “settled science” (ask Al Gore, if you doubt this) that in a century the “earth’s temperature” will rise and cause catastrophe.

Meanwhile, in the ort run, the science isn’t looking very settled. The New York Post reprints a story from the UK Sun:

The sun might soon batter us with a shower of deep space rays so intense, it could cause part of our atmosphere to collapse.

Space scientists reckon we are on the verge of a “deep solar minimum,” which is a period of low activity.

Unlike the name suggests, this could cause an outer layer of the atmosphere called the thermosphere to contract — and it’s not entirely clear what the effects of this could be on our planet.

Professor Yvonne Elsworth at the University of Birmingham in England believes that a “fundamental change in the nature of the [sun’s magnetic] dynamo may be in progress.”

It’s backed up by NASA’s Solar Dynamics Observatory’s daily snaps, which have shown a spotless sun for 44 days in a row.

This led scientists to believe that it’s nearing a tumultuous period not seen since 2008.

There is too much “may” and “might” floating around here for me to be 100% confident that the atmosphere will “collapse.”

One finding that I have arrived at (and I am a “social scientist” with a PhD in Sociology, after all) is that claiming catastrophe is a good way for a scientist to get attention. Maybe even some grant money.

Tony Thomas The Trump Doctrine on Energy

If you go by the mainstream media’s lockstep ‘coverage’ of the US president’s first six months, he is no more nor less than a tweeting buffoon. A comforting narrative for cant-addicted newsroom hacks and groupthinkers, it handily avoids any and all mooting of Australia’s need to follow his lead.

Our federal and state politicians scuttle about looking for innovative new ways to strangle the Australian energy sector. But across the Pacific, America is unleashing a world-changing energy revolution. The world’s energy fundamentals are in transition. Donald Trump is liberating American coal, gas, oil and nuclear industries from eight years of Obama’s harassment and restrictions.

The consequences for us as a player in energy-export markets are dire. In an officially supportive environment, Australian energy could hold its share – intrinsically, it has global competitiveness. But politics here involves ‘renewables’ targets and other sacrifices to please the climate gods, bans such as Victoria’s on normal and fracked gas exploration, official and green lawfare against every new energy project (think Adani), impromptu Turnbull restrictions on LNG exports, Sargasso seas of red tape, and on-going fatwas against nuclear proposals.

Domestically, American industry will enjoy cheap energy inputs, while our own industry’s energy becomes as expensive as anywhere in the world. This disparity will play out in Australian factory closures and capital flight to the US.

A banana republic couldn’t do a better job of destroying its own wealth.

The US is now estimated to have 20% more oil than the Saudis – at USD50 a barrel, a storehouse of USD $13 trillion. The US has been a net energy importer since 1953, but thanks to fracking is now likely to be a net exporter as early as 2020. American LNG could move into net export surplus as early as this year. By 2040, US natural gas exports alone could bring in USD $1.6 trillion, and generate USD $110b in wages. US gas reserves are also enough to meet domestic needs for a century. The American energy revolution – in Trump’s word, “dominance” – seldom makes the mainstream media here, which is fixated on the schoolyard narrative of Trump as a tweeting buffoon.

Want to know what’s really important? Trump on June 29 addressed the Department of Energy’s “Unleashing Energy” conference in Washington.

His policy announcements were so shattering to the green/left ideology – he talked of “clean, beautiful coal” for example – that his message went almost unreported here. Trump said

The golden era of American energy is now underway. When it comes to the future of America’s energy needs, we will find it, we will dream it, and we will build it.

American energy will power our ships, our planes and our cities. American hands will bend the steel and pour the concrete that brings this energy into our homes and that exports this incredible, newfound energy all around the world. And American grit will ensure that what we dream, and what we build, will truly be second to none.

Today, I am proudly announcing six brand-new initiatives to propel this new era of American energy dominance.

First, we will begin to revive and expand our nuclear energy sector which produces clean, renewable and emissions-free energy. A complete review of U.S. nuclear energy policy will help us find new ways to revitalize this crucial energy resource. [US nuclear plants have been shuttering because of cheap gas and low power demand].

Tony Thomas : Surely You’re Crying, Mr Feynman

Back in 1974, the US physicist and polymath warned graduating students of ‘cargo cult science’ and the careerist urge to confirm the flawed orthodoxy of earlier and inaccurate results. Climate “science” was then in its infancy but the trajectory of its corruption has confirmed all his worst fears.

The trouble with mainstream climate scientists is that they’re third-rate scientists, and the reason they’re third-rate is that they’re dishonest. My authority for this statement is physicist Richard Feynman (picturd), who has been dead for 29 years but was ranked by his peers as one of the ten greatest physicists of all time. Feynman set out the parameters for honest science in general, and I’ve never yet seen a mainstream climate scientist live up to Feynman’s honesty test.

In 2015 I was transiting through Los Angeles airport and killing time in a bookshop. I bought Feynman’s paperback Surely You’re Joking, Mr Feynman! because it seemed unusual for physicists to take pride in being funny.

In the book’s first essay he tells how, as a small kid, he earned pocket-money repairing people’s radios. A customer would tell him about a fault, and that would be enough to diagnose the problem without even turning on the set.

The book’s final essay – in between there’s wonderful entertainment – is called “Cargo Cult Science”. It’s the commencement address he gave to freshers at Caltech in 1974. The original cargo cults, as you probably know, involved post-war tribesmen in PNG building mock airstrips and control towers in the hope that this would attract US cargo planes to again deliver their cargoes of desirable goods. “They follow all the apparent precepts and forms of scientific investigation, but they’re missing something essential, because the planes don’t land,” Feynman told the students. He went on to talk about what is missing in bad science – honesty.

“It’s a kind of scientific integrity, a principle of scientific thought that corresponds to a kind of utter honesty—a kind of leaning over backwards. For example, if you’re doing an experiment, you should report everything that you think might make it invalid—not only what you think is right about it: other causes that could possibly explain your results; and things you thought of that you’ve eliminated by some other experiment, and how they worked—to make sure the other fellow can tell they have been eliminated.

“Details that could throw doubt on your interpretation must be given, if you know them. You must do the best you can—if you know anything at all wrong, or possibly wrong—to explain it. If you make a theory, for example, and advertise it, or put it out, then you must also put down all the facts that disagree with it, as well as those that agree with it. There is also a more subtle problem. When you have put a lot of ideas together to make an elaborate theory, you want to make sure, when explaining what it fits, that those things it fits are not just the things that gave you the idea for the theory; but that the finished theory makes something else come out right, in addition.

“In summary, the idea is to try to give all of the information to help others to judge the value of your contribution; not just the information that leads to judgment in one particular direction or another.

“We’ve learned from experience that the truth will out. Other experimenters will repeat your experiment and find out whether you were wrong or right. [Climate science is intrinsically not experimental but its modelling can now be checked against reality]. Nature’s phenomena will agree or they’ll disagree with your theory. And, although you may gain some temporary fame and excitement, you will not gain a good reputation as a scientist if you haven’t tried to be very careful in this kind of work. And it’s this type of integrity, this kind of care not to fool yourself, that is missing to a large extent in much of the research in Cargo Cult Science.

Peter Smith: Knavish Stupidy of the First Degree

Madness prevails. Cheered on by green zealots, governments have accepted a tenuous theory based on black-box models of no proven worth. As carpetbaggers rejoice with charlatans, those who can least afford it are bled dry for what was, until recently, cheap as chips: electricity.

It’s five o’clock on Sunday afternoon in Sydney in winter. By any reckoning Sydney doesn’t get that cold. But I have been at my computer for a couple of hours, with three layers on top and a beanie, and have been cold the whole of that time. When I was married the heater would have been on. Women sensibly don’t like putting up with cold. Me, I’m the son of my father who was always concerned about power bills.

He had reason to be concerned; big power bills seriously dented the household budget. Mind you, I can’t remember a time when a coal fire was not heating the living room on a cold afternoon. That’s progress for you; from warm to cold in the space of childhood to older age. I’ve finally just switched on my gas heater. Ah! The luxury of warmth will soon envelop the room.

Now, for a moment, imagine (if you have to) that you live in, say, Melbourne or Tasmania or Canberra and it’s a cold winter afternoon. Now imagine you are poor and must account for every dollar. Power bills matter to you.

You sit as a single mother with your young children wrapped in clothes and blankets. You’re old and clutch a hot-water bottle. You’re a coal power station worker thrown on the scrap heap, pacing the room, distraught at no longer being able to afford to keep your family warm.

Weep not at these Dickensian scenes for all is not bleak in each house. The poor find consolation in knowing they’re helping to save the planet by keeping their heaters off. An inspirational picture of Al Gore hangs over their cold mantelpieces. Big Al watches over them from his private gas-guzzling jet.

Meanwhile in Point Piper and Toorak the deeply-green Smug and Swank families are enjoying the warmth supplied by under-floor heating throughout every room. But there are no double standards here. They are renewal-energy junkies to their cores. They have taxpayer-subsidised solar panels fitted across their vast roofs, which often earn them a rebate for supplying power to the grid. True, managing this reverse flow of power increases power bills for others, but that’s not their fault.

Madness prevails. Cheered on by green zealots, governments have accepted as settled a tenuous scientific theory, based almost entirely on black-box model predictions which have been seriously astray. If that is not enough, cheered on by carpetbaggers and snake-oil merchants, intermittent, unreliable, ineffective and cripplingly costly renewal power has been foisted on working-class populations scared into compliance.

On the flimsiest basis, the world has been turned upside down. Power bills have soared. Our governments and politicians have shown themselves to be as susceptible to superstition as those in bygone ages who sought the future in the entrails of animals. And then there are those in the broader community who simply accept any old rope handed down from authority. Give them the Little Red Book and they would have been fodder for Mao.

I need to confess to an evolving mind. I entertained a small possibility that the received wisdom of catastrophic man-made global warming might be right, though the remedies being applied were totally misconceived (to some extent I was in sync with the Matt Ridley and Bjorn Lomborg positions). Now, the more I read, the more I am tending to believe that it is codswallop from start to finish.

Here, I think, is fairly persuasive scientific comment from Richard Lindzen, eminent Emeritus Professor of Atmospheric Sciences at MIT:

The system we are looking at consists in two turbulent fluids interacting with each other. They are on a rotating planet that is differentially heated by the sun. A vital constituent of the atmospheric component is water in the liquid, solid and vapor phases, and the changes in phase have vast energetic ramifications. The energy budget of this system involves the absorption and reemission of about 200 watts per square meter. Doubling CO2 involves a 2% perturbation to this budget. So do minor changes in clouds and other features, and such changes are common. In this complex multifactor system, what is the likelihood of the climate (which, itself, consists in many variables and not just globally averaged temperature anomaly) is controlled by this 2% perturbation in a single variable? Believing this is pretty close to believing in magic. Instead, you are told that it is believing in ‘science’.
– Thoughts on the Public Discourse over Climate Change

Walker Battles Climate Change Believers to Reshape Department of Natural Resources By Rod Kackley

Wisconsin Democrats have demanded Gov. Scott Walker (R) join the U.S. Climate Alliance, a newly formed coalition of states that intends to move forward with the terms of the Paris climate accord after President Trump’s decision to pull out of the agreement.

“President Trump’s rejection of fact, science and of the Paris Climate Agreement is an act that endangers every American. Gov. Walker’s silence on this issue echoes this shared anti-environment, anti-middle class agenda,” read the letter to Walker signed by 35 state representatives and 11 senators.

“Given the recent reports on Wisconsin’s dismal slump in job creation, we cannot afford to reject both the economic opportunity that green jobs would bring to Wisconsin and the moral obligation of taking a stand to address climate change,” the Democrats concluded.

Will Walker bend and join the Climate Alliance? Not likely, since the Republican has proposed transferring 15 scientists, who had been studying climate change and global warming, to new jobs within the Wisconsin Department of Natural Resources. Two years ago, 18 DNR science bureau researchers lost their jobs as the result of a Walker administration budget cut.

Democrats said it’s no coincidence that all of those DNR employees were working on climate change research and the impact climate change could have on Wisconsin.

“This is just part of the continued effort to discourage the use of science or evidence in this administration’s decision-making,” Sen. Jon Erpenbach (D) told the Wisconsin State Journal. “Gov. Walker and Legislative Republicans don’t want science to get in the way of their politics.”

Sen. Tom Tiffany (R), who said the idea that climate change was caused by human activity was “theoretical,” told the Wisconsin State Journal it is true the Walker administration is trying to alter the structure of the DNR.

“I think it’s a more disciplined approach where the leadership of the Department of Natural Resources really directs that research,” said Sen. Tiffany, who does not believe that the climate is changing as rapidly as many scientists claim.

This is not a new political fight in Wisconsin. The DNR’s website was scrubbed of its climate change section late last year. Instead of saying the Earth’s climate was changing and humans were the cause, the Wisconsin DNR site now notes the Earth is going through a change with the causes of said change still being debated.

“As it has done throughout the centuries, the earth is going through a change. The reasons for this change at this particular time in the earth’s long history are being debated and researched by academic entities outside the Wisconsin Department of Natural Resources,” the DNR website read. CONTINUE AT SITE

The Appalling Delusion of 100 Percent Renewables, Exposed The National Academy of Science refutes Mark Jacobson’s dream that our economy can run exclusively on ‘green’ energy.. By Robert Bryce

The idea that the U.S. economy can be run solely with renewable energy — a claim that leftist politicians, environmentalists, and climate activists have endlessly promoted — has always been a fool’s errand. And on Monday, the National Academy of Sciences published a blockbuster paper by an all-star group of American scientists that says exactly that.

The paper, by Chris Clack, formerly with the National Oceanic and Atmospheric Administration and the University of Colorado Boulder, and 20 other top scientists, appeared in the Proceedings of the National Academy of Sciences. It decimates the work of Mark Jacobson, the Stanford engineering professor whose wildly exaggerated claims about the economic and technical viability of a 100 percent renewable-energy system has made him a celebrity (he appeared on David Letterman’s show in 2013) and the hero of Sierra Clubbers, Bernie Sanders, and Hollywood movie stars, including Leonardo DiCaprio.

Jacobson became the darling of the green Left even though his work was based on Enron accounting, alternative facts, and technology hopium. Nevertheless, his claims were politically popular, and his academic papers routinely sailed through peer review. In 2015, Jacobson published a paper, co-written with Mark Delucchi, a research engineer at the University of California, Berkeley, in the Proceedings of the National Academy of Sciences. The paper, which claimed to offer “a low-cost solution to the grid reliability problem” with 100 percent renewables, went on to win the Cozzarelli Prize, an annual award handed out by the National Academy. A Stanford website said that Jacobson’s paper was one of six chosen by “the editorial board of the Proceedings of the National Academy of Sciences from the more than 3,000 research articles published in the journal in 2015.” The fact that the National Academy would bestow such a prestigious award on such weak scholarship greatly embarrass the Academy, which gets 85 percent of its funding from the federal government.

In their scathing takedown of Jacobson, Clack and his co-authors — who include Ken Caldeira of the Carnegie Institution, Dan Kammen of the University of California, Berkeley, former EPA Science Advisory Board chairman Granger Morgan, and Jane Long of Lawrence Livermore National Laboratory — concluded that Jacobson’s 2015 paper contained “numerous shortcomings and errors.” The paper used “invalid modeling tools, contained modeling errors, and made implausible and inadequately supported assumptions.” Those errors “render it unreliable as a guide about the likely cost, technical reliability, or feasibility of a 100 percent wind, solar, and hydroelectric power system.”

Among the biggest errors — and one that should force the Academy to withdraw Jacobson’s 2015 paper — is that Jacobson and Delucchi overstated by roughly a factor of ten the ability of the United States to increase its hydropower output. Furthermore, the paper ignores two key issues: electricity storage and land use. Jacobson claimed that the U.S. can store energy underground or store it in the form of hydrogen. Clack and his co-authors wrote that “there are no electric storage systems available today that can affordably and dependably store the vast amounts of energy needed over weeks to reliably satisfy demand using expanded wind and solar power generation alone.”

But the most obvious flaw in Jacobson’s scheme involves his years-long refusal to admit the massive amount of land his proposal would require; his myriad acolytes have repeated his nonsensical claims. For instance, last year, Bill McKibben, the founder of 350.org and one of America’s highest-profile climate activists, wrote an August 2016 cover story for The New Republic in which he lauded Jacobson’s work and repeated Jacobson’s erroneous claim that his all-renewable program would need only “about four-tenths of America’s landmass.”

Delingpole: Trump Is Western Democracy’s Last Man Standing Against the Green Terror James Delingpole

Donald Trump is the only leader left in the world defending Western democracy against eco fascism.

Don’t just take it from me. Read this Belgian philosopher, Drieu Godefridi, interviewed in the French liberal newspaper Contrepoints and translated here by Friends of Science Calgary.

He believes that the Paris climate agreement was a global socialist plot which the U.S. was absolutely right to escape:

[President Trump] perfectly grasped the essence of the Paris Agreement, which is to redistribute the wealth of the West to the rest of the world – he expressly declared it on the Lawn of the White House, on June 1st, 2017 when making the American exit from Paris official. In so doing, he has stopped the formidable internationalist socialist machinery that was in the process of being set up. In other words, he has refused to validate the third-world moral intuition, and the scientific pretext that gave birth to the Paris Agreement.

Environmentalism, argues Godefridi, is just another facet of the left’s ongoing war against democracy:

What we have been seeing for the past two decades, in the areas of climate, gender theory, immigration and terrorism, and so on, is that activist minority ideologues have confiscated democratic debate.

What makes it so especially dangerous is that unlike, say, gender theory – which everyone knows to be made-up leftist nonsense – climate change has a superficial scientific plausibility capable of fooling people who ought to know better. But really, it’s just another mask for globalism.

The true ‘climate deniers’ By Michael N. Mattia

The money-grubbing hucksters of climate change, global warming, or whatever other catchphrase title is being used to scare the gullible Chicken Littles of the world claim modern “science” has the ability to foretell the future. Their predictions are no more reliable than those of a swami gazing into a crystal ball telling you that if you simply contribute money to his personal lottery for the next five years, he will guarantee a significant return.

There are a few issues that should be seriously considered before throwing tens of billions of hard-earned taxpayer dollars into an international slush fund like the Paris Accords. The leaders of the world’s various governments clamoring for more and more wealth re-distribution are more than happy to sign on to such nonsense, especially if the money is going to come from the United States.

First, the prognostications of climate doom and gloom occurring in the next 100 years ignore human history. The science of today may very well turn out to be as accurate as the science of yore which claimed the Earth was flat or that the sun revolved around the Earth. The modern-day alarmists are direct philosophical descendants of those who claimed that the only way to ever cross oceans was by sailing ship, or that there would never be any form of locomotion and all transport would be powered by animals, or the only way for humans to communicate long-distance was by pen and paper…and choose to ignore the results of the ingenuity and inventiveness of the individual human mind. No one can predict the technological marvels of the future or the impact these innovations will have on our lives.

Second, history has shown that thrusting vast amounts of money into the hands of corrupt politicians (but I repeat myself) and bureaucrats only serves to make those people rich. Has the bloated bureaucracy of the United Nations and the spoiled, pampered, and overpaid bureaucrats living large in Manhattan really made a significant change in the world? Wars are rampant; dictatorships flourish; polio still cripples millions; malaria still ravages third-world countries whose leaders live in palaces and drive around in armored limousines.

What government has ever developed a technology to improve life on the planet? Perhaps atomic energy is the exception that proves the rule, but that was initially developed to destroy. Most if not all advances in technology have been accomplished by the individual inventor, entrepreneur, or risk-taker. The telegraph, the telephone, electricity, the steam engine, all from individuals never from government. Even today, most technological advances come from the private sector. Why would anyone base his hopes on the promises of politicians?

Why are so many willing to cast trillions of dollars into a virtual bottomless pit of government graft, fraud, and waste? One hundred ninety-two nations of the world working toward a common goal? That is truly Alice in Wonderland fantasy.

Switzerland’s Carbon Capture Plant Is a Giant Waste of Money By Spencer P. Morrison

On May 31, 2017 the world’s first commercial atmospheric carbon-capture plant opened for business in Hinwil, Switzerland.

The plant, designed and operated by a Swiss company called Climeworks, is different from existing carbon-capture facilities because it filters carbon dioxide out of the ambient atmosphere using proprietary technology, rather than from industrial exhaust, which is quite common.

Climeworks claims their facility will be able to remove 900 tons of carbon from the atmosphere every year. Furthermore, its modular design will allow it to be scaled up as the demand for carbon dioxide increases.

What do they plan to do with said carbon? Some of it will be pumped into nearby greenhouses to help the plants grow better, some will be used in carbonated beverages, and the rest will be sequestered deep underground in Swiss mines. The point? To stop climate change. Whether or not this is a worthy goal is beyond the scope of this article, but for the sake of argument, assume that climate change is a clear and present danger–even an existential threat. Does this project make sense?

No.

First of all, given the quantity of carbon Climework’s plant is able to filter from the atmosphere, it would take some 250,000 such facilities to meet even the relatively modest carbon sequestration goals recommended by the Intergovernmental Panel on Climate Change–that is 1% of total emissions by 2025. Presumably building these would cost a lot of money (although in fairness, Climeworks had not disclosed the cost of its project).

Also, in order for the company to be profitable, the carbon must be sold to greenhouses and pop manufacturers. Has it occurred to any of these “environmentalists” that the moment the lettuce is shipped out of the greenhouse, or the can of Sprite is opened that the carbon dioxide simply returns to the atmosphere. This plant will mostly just move carbon around, and is therefore useless.

The only way this facility actually removes carbon from the atmosphere is via sequestration, which is clearly not profitable. This means taxpayers will inevitably be on the hook for this “business” venture. Of course, carbon is used in oil wells, but more than enough of that is harvested locally from exhaust–no one needs Swiss atmospheric carbon.

Finally, Climeworks, and the entire green technology industry for that matter, appears to have forgotten that trees exist. Yes, trees. Trees naturally remove carbon from the atmosphere, and give us beautiful breathable oxygen. They basically do exactly what Climeworks does, except they are free–or dirt-cheap at the very least.

The best part is that trees are also very good at what they do. Depending on the climate and the type of tree, they can remove enormous amounts of carbon from the atmosphere, and lock it away for centuries. In numerical terms, it only takes 98 “mature” trees (trees that can grow at least 20lb per year) to remove one ton of carbon dioxide from the atmosphere, and this number is for Canadian trees, which are not particularly verdant.

The Charade of the Paris Treaty The real problem with the global accord on climate change is that it would make no real difference By Bjorn Lomborg

Environmentalists were aghast when President Donald Trump withdrew the U.S. from the Paris climate treaty, with some declaring that the very survival of our civilization was at stake. But is the Paris accord really all that stands between the planet and the worst of climate change? Certainly not.

This is not to deny that President Trump’s announcement was problematic. He failed to acknowledge that global warming is real and wrongly claimed that China and India are the “world’s leading polluters.” (China and the U.S. are the largest emitters of carbon dioxide, and the U.S. is the biggest per capita.) It was far-fetched for him to suggest that the treaty will be “renegotiated.” Worse, the White House now has no response to climate change.

But the global consensus about the Paris treaty is wrongheaded too. It risks wasting huge resources to do almost nothing to fix the climate problem while shortchanging approaches that promise the most transformative results.

Consider the Paris agreement’s preamble, which states that signatories will work to keep the rise in average global temperature “well below” 2 degrees Celsius and even suggests that the increase could be kept to 1.5 degrees. This is empty political rhetoric. Based on current carbon dioxide emissions, achieving the target of 1.5 degrees would require the entire planet to abandon fossil fuels in four years.

But the treaty has deeper problems. The United Nations organization in charge of the accord counted up the national carbon-cut pledges for 2016 to 2030 and estimated that, if every country met them, carbon dioxide emissions would be cut by 56 gigatons. It is widely accepted that restricting temperature rises to 2 degrees Celsius would require a cut of some 6,000 gigatons, that is, about a hundredfold more.

The Paris treaty is not, then, just slightly imperfect. Even in an implausibly optimistic, best-case scenario, the Paris accord leaves the problem virtually unchanged. Those who claim otherwise are forced to look beyond the period covered by the treaty and to hope for a huge effort thereafter.

The treaty commits nations to specific and reasonably verifiable (but nonbinding) cuts in carbon emissions until the year 2030. After that, nothing really is concrete, for a very understandable reason: Could you imagine a carbon-cutting promise made by President Bill Clinton being fulfilled by Mr. Trump? Could you see a Democrat in 2035 feeling honor-bound by policies set by Mr. Trump today?

Now ask the same sort of questions about every country that has signed the treaty. Rose-tinted hopes for the accord’s success rely on heroic assumptions about what tomorrow’s world leaders will do. If what we need is a carbon diet, the Paris treaty is just a promise to eat one salad today, pushing all the hard self-restraint far into the future.

History gives us cause for skepticism about overly optimistic forecasts, even over much shorter spans. In 1993, Mr. Clinton committed the U.S. to cutting emissions by 2000, but he ditched the promise seven years later. In 1992, the industrialized nations promised that they would lower their emissions to 1990 levels by 2000. Nearly every country failed. Before the Paris treaty, the Kyoto Protocol was sold as a key part of the solution to global warming, but a recent study in the Journal of Environmental Economics and Management shows that it achieved virtually nothing.

In the wake of Mr. Trump’s exit from the Paris treaty, there have been many claims that solar and wind energy will soon be ready to power the world. This also isn’t true.

Just 0.6% of the world’s energy needs are currently met by solar and wind, according to the International Energy Agency. Even with implementation of the Paris treaty, solar and wind are expected to contribute less than 3% of world energy by 2040. Fossil fuels will go from meeting 81% of our energy needs to three-quarters. The energy expert Vaclav Smil of the University of Manitoba puts it bluntly: “Claims of a rapid transition to a zero-carbon society are plain nonsense.”

Though there are contexts in which solar and wind energy are efficient, in most situations they depend on subsidies. These will cost $125 billion this year and $3 trillion over the next 25 years, to meet less than 3% of world energy needs. If solar and wind truly out-competed fossil fuels, the Paris treaty would be unnecessary. CONTINUE AT SITE