Delingpole seriously embarrassed himself in the BBC's Horizon programme Science Under Attack when he debated climate change with Nurse, a Nobel Prize winning scientist. Specifically, Delingpole described his climate change 'journalism' as interpreting interpretation: he didn't read scientific papers, not even the abstracts.
More specifically, he has found a few people who share his biases and then uses their writings as evidence for his own opinions, as they use his to buttress theirs. 'Science' is a word used often, but the scientific method seems to be unknown to them as they resort to rhetoric instead. It seems that winning an ill-natured argument is far more important to them than actually being right. (They fervently believe they are right, of course, though they make no effort to develop secure lines of reasoning, relying on the whole list of pseudo-science techniques described here.)
The comments on the blog entries are even less nuanced, as they don't even try to use rhetorical tricks and deceptions. If you have ever had so little going on in your life that you feel able to interact with the low-lifes that inhabit these sites, then you may skip to the end.
But this is the nature of argument from those that worship the self-important journalists such as Delingpole. Insults are the order of the day: anonymous posters are just rude. If you come up with a good argument, data that disproves a statement or even just try to act as a moderating influence, then expect to get flamed.
Ignore reasoned argumentsTell the poster that their sort of person makes you sick and you can't believe how much they wriggle and squirm in a proper debate. Tell them how thin skinned they are. If you are lucky, they will be distracted by your bilge and not notice that you had no answer to their line of argument.
Consensus Plays No Part in ScienceIf anyone has the front to point out that the specialists in the field are virtually unanimous in their judgements, so you are likely to be mistaken, bang on about the 'fact' that consensus plays no part in science. This is a great move, since you can act as an expert in your own right at the same time as denying real experts know anything about the reality of the science. It is, of course, nonsense. Science does not have authorities that pass judgement on theories when there is disagreement. The only way for tentative theories to enter the canon of accepted principles is for them to be debated back and forth along with the data in journals and at conferences, until everyone has had their objections answered and consensus is reached. Far from 'consensus plays no part in science', a lack of consensus is fatal to the progression of a scientific theory. Consensus is the only way in science.
Apply Different Standards of Evidence to OpponentsAppear to carefully pick apart statistical inferences with which you disagree, then slip in a non-sequitur based on an absence of evidence. For instance, challenge the last fifty years of warming by selecting your data from one of the regularly occurring decades where the warming slows or stops for a few years, say that there is no statistically significant warming. If there is warming, pick a new start year that is especially warm and try again to fit a negative gradient. Ignore the fact that the correlation is very weak (r=0.1) and insignificant. Try the line that since warming is not proven, so cooling must be happening. And add an insult as a diversion so no-one notices the sleight of hand.
Libel the ExpertsRepeatedly point out that some of the experts are actually computer modellers, chemists or physicists, not 'climate experts', and make claims that they are in the pay of large governmental and NGO conspiracies. Refer to your own sources as 'renowned climate experts', even if they are retired engineers or computer modellers. ('Renowned' is the give-away term, as no reputable scientists refer to anyone as renowned.)
Quote Your Own ConsensusQuote a big, long list of scientists who signed up to an online statement supporting your view, but don't worry if none of them are actually working in a related field of study. As long as they give academic titles and put PhD after their name, they are scientists, right? And don't call it a consensus, as you have already claimed that consensus is not part of science.
Hide Contrary ViewsTo force recent posts that challenged your statements off the bottom of the first page, find a contrarian web site and cut and paste large chunks of it into your posts. This has the bonus of not requiring any thought whatsoever on your part. When the offending posts have disappeared, you can repeat what you wrote before, secure in the knowledge that new readers will not see that there are good reasons not to trust what you say.
The LessonThis was the first time I tried to sustain interest in a blog comments section for a couple of days, and there were over a thousand posts in that time (some commenters seemed to post continually day and night - didn't their mothers tell them to come up out of the basement and go to bed?)
I tried to direct arguments towards a discussion of evidence, towards an understanding of the statistical limits of certainty, towards the problematical bias of picking an opinion and searching out individuals who support that idea instead of dispassionately assessing opinions and evidence in the round. But it was for naught.
Delingpole told Paul Nurse in the Horizon programme that he didn't read proper research papers, because peer-to-peer review (clever, huh!) was an improvement on peer-review because it allowed journalists and anyone with an interest to get stuck in.
And he said it with a straight face!