On ad hominem attacks

Which climate change is worse – global warming or global cooling?

Climate experts believe the next ice age is on its way

The shifting sources of greenhouse gas emissions

Source: World Resources Institute, Bloomberg New Energy Finance

HT: bloombergview.com

On arguments from authority

Niagara Falls has frozen over

'The attention the Falls is receiving is bringing a crowd to view them in their majestic, winter splendor!' said Michelle Blackley, communications & community relations manager for the Falls

HT: dailymail.co.uk

Who gains from global warming alarmism?

Today in 1979, snow fell in the Sahara Desert

https://twitter.com/EpicHistoryPics/status/566737046438678528

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Deciding science by voting – updated

One of the troubling aspects of climate alarmism is its repeated appeals to authority. Rather odd for a bunch left-wingers trying to overthrow the status quo and the established order.

The most obvious manifestation of this tactics to go on about how there is a consensus of scientists, the science is settled or the debate is over.

These repeated and unimaginative appeals to authority are either to champion the existing scientific views about global warming or to suggest that previous scientific predictions of global cooling in the 1960s and 1970s were only a minority view.

Again, an appeal to authority is an odd communication strategy for the climate alarmists. Their movement is made up more of young people because of the overweening conceit  of youth. Many of their recruits are young people.The debate over the causes of global warming and its likelihood must be repeated over and over again, if only to introduce and socialise their new recruits to the arguments and counterarguments.

One of the reasons I changed my mind on the economics and politics of climate science  is these repeated appeals to authority  and general bully boy tactics made me suspicious of the underlying merits  of the arguments canvassed.

The only profession I know of which actually does take a vote on what is the truth in a scientific sense is psychiatrists. Their American annual conference has a vote on what to put out their professional diagnostic manual. This science by voting never went well with various psychiatric disorders voted in and out of their professional diagnostic manual on the basis of politics, cultural bias and the medicalisation of human distress.

John Stuart Mill emphasise the value of even completely false arguments in keeping us on our toes. His scenarios involves both parties of opinion, majority and minority, having a portion of the truth but not the whole of it. He regards this as the most common of the three scenarios, and his argument here is very simple. To enlarge its grasp of the truth the majority must encourage the minority to express its partially truthful view.

J.S. Mill pointed out that critics who are totally wrong still add value because they keep you on your toes and sharpened both your argument and the communication of your message.

If the righteous majority silences or ignores its opponents, it will never have to defend its belief and over time will forget the arguments for it. As well as losing its grasp of the arguments for its belief, J.S. Mill adds that the majority will in due course even lose a sense of the real meaning and substance of its belief. What earlier may have been a vital belief will be reduced in time to a series of phrases retained by rote. The belief will be held as a dead dogma rather than as a living truth.

Three scenarios – the majority is wrong, partly wrong, or totally right – exhaust for Mill the possible permutations on the distribution of truth, and he holds that in each case the search for truth is best served by allowing free discussion.

Mill thinks history repeatedly demonstrates this process at work where silencing  falsehood led to dogmas rather than living truth. He offered Christianity as an illustrative example. By suppressing opposition to it over the centuries Christians ironically weakened rather than strengthened Christian belief. Mill thinks this explains the decline of Christianity in the modern world.  Christians forgot why they were Christians and  in the Reformation could not successfully rebut who came up with valid criticisms of their existing profession of faith.

Going on about how climate science is settled and the debate is over is bad tactics for the climate alarmists. Attempts to close the debate this way provokes suspicion among those who expect some attempt to persuade them rather than to instruct them from on high. Presumptuousness is never a good persuasion tactic nor is dismissiveness.

A salesman trying to sell a product would never use any of the persuasion tactics or selling tactics of the climate alarmists. They would quickly go out of business if they did.

Is Al Gore to blame for the rise of climate scepticism?

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Anti-science Left alert: NZ Greens reject scientific consensus on GMOs but not global warming

FoodProductionSafetyinvite

But I’m not going to focus this speech on the dire consequences of doing nothing on climate change. I’m sure all of us have heard the science; we’ve read about the wicked storms and wildfires and droughts, the risks to agriculture and forestry, the threats posed to our homes and wildlife. We’ve probably even seen some of the changes first hand in our own backyard.

Russel Norman, co-leader, Green Party of New Zealand, 10 February 2015,

But on genetic engineering,the Green Party of New Zealand takes its leave of the scientific consensus, scientific consensus as strong as that on global warming. To quote the policy platform of the Green Party of New Zealand:

GE crops have a huge effect on farmers, scientists and the market, and their development is driven by big agribusiness for big profits.

GE crops and foods have an uncertain effect on our health and the environment.

We have opposed the release of GE into the environment and have worked in parliament to improve legislation covering GE organisms.

The Green Party remains committed to keeping the Aotearoa New Zealand environment free of GE organisms.

GE needs to stay in the lab, releasing it would destroy our clean green image which is so important to our economy

It must be true, someone said so on…

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Climate Prediction Models That Can’t Predict Climate

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Motivated reasoning and expert advice on the risks of global warming

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Passion for climate change cools

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