Is earth’s temperature about to soar? (No pause, no hiatus, only warming)

This is a guest post by the statistician who blogs as Tamino, cross-posted from his Open Mind blog with his permission. It’s important reading…

A recent blog post on RealClimate by Stefan Rahmstorf shows that when it comes to recent claims of a “pause” or “hiatus,” or even a slowdown in global surface temperature, there just isn’t any reliable evidence to back up those claims.

TempCP3

Yet for years one of the favourite claims of those who deny the danger of global warming has been “No global warming since [insert start time here] !!!” They base the statement on the observed data of earth’s surface temperature or its atmospheric temperature. Then they claim that such a “pause” or “hiatus” in temperature increase disproves, in one fell swoop, everything about man-made climate change.

They seem a bit worried lately because it is very likely that the data from NOAA (National Oceanic and Atmospheric Administration) will record this year as the hottest on record; we won’t know, of course, until 2014 is complete. A single year, even if the hottest on record, has only a little to do with the validity of such claims, but a lot to do with how hard it is to sell the idea. Perhaps they dread the prospect that if the most recent year is the hottest on record — in any data set — it will put a damper on their claims of a “pause” in global warming. If they can’t claim that any more, it deprives them of one of their most persuasive talking points (whether true or not). Still the claims persist; they’ve even begun preparing to ward off genuine skepticism spurred by the hottest year on record.

I seem to be one of very few who has said all along, repeatedly and consistently, that I’m not convinced there has been what is sometimes called a “pause” or “hiatus,” or even a slowdown in the warming trend of global temperature — let alone in global warming.

Continue reading “Is earth’s temperature about to soar? (No pause, no hiatus, only warming)”

Solid Treadgold, easy action (NZ still warming fast)

It’s time to return to the delusions harboured by New Zealand’s little coterie of climate cranks about the NZ temperature record. Readers may recall that — somehow — the men who lost a court case against NIWA and then folded the charitable trust they’d used to bring the case in order to avoid paying costs, managed to get their “reconstruction” of the NZ temperature record through peer review and into the scientific literature. To no-one’s surprise, they found that warming in NZ was only one third of that found by NIWA and a generation of NZ climatologists. To do that, they had to torture the data beyond endurance, as I showed at the time.

Equally unsurprising is that Richard Treadgold, prime mover of the whole fiasco, felt moved to respond in a number of typically prolix posts at his blog. His first, What Mullan actually says, purports to lay out the disputed points:

…I think these are the debating points he’s trying to make, lined up with the passages in which he makes them.

One small problem. This is not a debate. The facts are what the facts are, just as the temperature data is what it is. No amount of handwaving — or appeals to judicial authority — can change the facts of this matter. What can change is the interpretation placed on those facts, and that’s where Treadgold et al went wrong on day one.

In 2010 they decided — and explicitly told the world — that NZ’s climate scientists had been cooking the books. Everything they’ve done since has been a part of building a false narrative, a silly superstructure of misinterpretation and misdirection clumsily bolted together, designed to fool anyone sympathetic to their position. The new paper, by de Freitas, Dedekind & Brill 2014 (dFDB 2014) is just the latest effort to prop up that tottering edifice.

I have no intention of wasting time by playing along with Treadgold et al’s narrative. There are so many misdirections and misunderstandings on display in his sequence of posts that it would take a magnum opus to deal with them all. If I thought that by doing that I might change their minds — win them over to the world of climate rationality — then I would be happy to do it, but Treadgold et al are not what I would describe as rational actors. They admit no facts that are inconvenient to their world view, and show no sign of educability on climate science.

Continue reading “Solid Treadgold, easy action (NZ still warming fast)”

National Business Review: last bastion of climate denial in NZ pushes de Freitas tosh

The National Business Review — New Zealand’s biggest-selling business weekly — provides a happy media home for climate deniers of all stripes. Columnists like former ACT Party leader Rodney Hide and right wing spin doctor Matthew Hooton ((Hooton’s last column on climate matters appeared two weeks ago, and managed to be a spectacular home goal. But then he’s no stranger to those.)) are given free rein to rant and rave about climate issues, but occasionally editor Nevil Gibson offers its august platform to others so that they can spout fatuous piffle. Last week’s issue featured an opinion column by Chris de Freitas, in which he waxes lyrical about his recent paper on the NZ temperature record — the shonky one that claims to find warming to be only one third of what real experts calculate.

The NBR hides most of its material behind a paywall, so I can’t link directly to the text — but the less scrupulous chaps at the NZ Climate “Science” Coalition ((Let’s not forget that they are quite happy to register a charitable trust to bring a court case against NIWA, and then fold it so that the trustees can escape the financial consequences of their actions, so the fact that they are happy to disrespect the NBR’s paywall should come as no surprise.)) are happy to host a pdf lifted from the NBR site.

As you might expect, de Freitas doesn’t restrict himself to narrow concepts of truth and factual accuracy. He mentions the cranks’ court case…

The High Court ruled against the trust and ordered it to repay court costs.

… but neglects to point out that the trust has since failed to pay those costs. It has of course been put into receivership, thus allowing the trustees to escape the $90,000-worth of financial consequences of losing their crackpot case.

de Freitas also misrepresents the membership of the trust.

Continue reading “National Business Review: last bastion of climate denial in NZ pushes de Freitas tosh”

Danger Dedekind! Heartbreak Ahead (still wrong, still digging, NZ still warming fast)

Over last weekend, my post criticising the new paper by Chris de Freitas, Manfred “Bob” Dedekind and Barry Brill that claims warming in New Zealand’s temperature records is only one third of that calculated by the National Institute of Water and Atmospheric Research (NIWA) attracted a flurry of attempted ripostes at Richard Treadgold’s Climate Conversation blog. One — by Bob Dedekind — sets out to be a rebuttal of my original post. Sadly for Bob and his co-authors, he has only managed to dig himself into an even deeper hole.

For the sake of the record, therefore, I have taken the time and trouble to deal with each of his points in detail. The results of my researches do not make pretty reading for De Freitas, Dedekind, Brill, or the editorial team, reviewers and publishers of Environmental Modelling and Assessment.

Continue reading “Danger Dedekind! Heartbreak Ahead (still wrong, still digging, NZ still warming fast)”

TVNZ pushes Leyland’s climate lies

In an appalling lapse of editorial judgement, TVNZ has given notorious Climate “Science” Coalition propagandist Bryan Leyland four minutes of airtime this morning [TVNZ page removed: but available here.] to rubbish the work of the IPCC. Yes, that’s right, the nation’s public broadcaster presented a man way out on the crank fringe who has made a late-life career out climate denial, against one of the largest scientific undertakings of all time — the IPCC’s Fifth Assessment Report. The IPCC, lest we forget, warned yesterday that world faces “severe, pervasive and irreversible” damage from climate change unless we cut emissions steeply.

Leyland was allowed to lie about about computer models and modellers, present a shonky graph, claim that increasing carbon dioxide in the atmosphere was a “huge benefit” to agriculture, and completely misrepresent the scientific consensus on the reality of warming. The presenter, Rawdon Christie, did try a little scripted pushback early in the piece, but was woefully underprepared to deal with a Leyland obviously gleeful at his opportunity to spout nonsense to the nation.

Here a list of Leyland’s lies, roughly transcribed from the video:

“Everything’s based on computer models – they’re programmed to show warming”

No they’re not. One of the oldest climate lies on the block, and Leyland uses it shamelessly. Worse, he’s allowed to get away with it by a woefully underprepared presenter.

Models predicted warming and it hasn’t happened [with graphic ((Leyland’s shonky graph:

TVNZLeyland

It appears to be a thinly-disguised and uncredited reworking of a graph that first appeared in the Wall Street Journal in February of this year, accompanying an op-ed piece by John Christy — itself a tidying up of a long-debunked graph created by Roy Spencer.))]

Warming continues: ice melts, sea levels rise and oceans warm

No indications of rate increase in sea level rise

Sea level rise has accelerated, and is expected to accelerate further as warming continues and ice sheets disintegrate.

Computer modellers are a small group — everyone else just goes along with them.

Absolute nonsense. This is a childish and overtly conspiracist misrepresentation of reality.

We’re entering a cooling period.

Another piece of wild nonsense from Leyland, betraying his parlous relationship with reality, and allowed to pass unchallenged by the presenter.

Increasing CO2 has been a huge benefit to plant growth — “not doing us any harm”

More completely made-up nonsense, allowed to pass unchallenged by Christie.

None of this is unexpected from Leyland. He has a long track record of persuading the more gullible NZ media to give him a platform to mislead, misrepresent and play fast and loose with the facts. TVNZ must have been aware of his notoriety, which makes their decision to present him on screen as “a renewable energy expert” grossly misleading and very likely a breach of broadcasting standards ((Should you wish to make a complaint against the programme, you may do so here.)).

But the biggest editorial lapse of all was the decision to put him on the show at all. Leyland is a lonely man out on the crank fringes of climate denial. To suggest that he has any sort of valid view on the reality of climate change — to set him up against the work of thousands of scientists around the world and the entire NZ scientific community — was outrageous. Climate change is far too serious an issue for the planet for a responsible broadcaster to play silly false balance games. They must broadcast an immediate correction and apology, and in future treat the issue with the seriousness it deserves.

[Update 5pm: It appears TVNZ have pulled the video of Leyland’s interview and the accompanying news story from their site in response to the many formal and informal complaints they have received. However the full interview can be seen (for the time being, at least) on Youtube. And the TVNZ News Facebook post about Leyland’s interview is still there.]