Dr Vincent Gray is one of the most active of NZ’s little band of cranks. He’s been publishing his “envirotruth” newsletter since the ’90s, always brimful of climate scepticism, and has been a stalwart reviewer of IPCC reports. His most recent contribution to the IPCC process was to make 1,898 comments on the final draft of the Working Group One report – 16% of the total, and, perhaps unsurprisingly, he accounted for 95% of the comments rejected by the authors. Vincent’s offerings are the backbone of the NZ Climate “Science” Coalition site, and I always enjoy reading them.
His most recent, Problems With Surface Temperature Data [PDF], is typical. He asserts it’s impossible to arrive at a meaningful figure global temperature, prefers satellite data but doesn’t believe it, and then states that “Since the amalgamated surface record is unreliable, an indication of temperature change over the past century can be obtained from well-maintained local records. Attempts to correct for the many errors, though not entirely successful, give records of some credibility.” (Otherwise known as the cherry-pickers charter). He then disinters a 1994 paper that found a 60-65 year cycle in global temperature (but I thought that was meaningless) if the data is “detrended”. One wonders what trend was removed. Perhaps the long term underlying rise in temperature? If we ignore the data, it goes away. Magical thinking at its finest.
[UPDATE 6/11/07: NASA’s excellent Earth Observatory posts a very interesting article about James Hansen and the development of the global temperature record. There’s a superb animation of atmospheric flows from space on page 2.]
But the most interesting part of Vincent’s report is the note at the end: “This paper is part of â€œThe Science is not Settled: Major Issues Remain Unresolved by the IPCC: A Report of the NIPDD” (sic) (Non-governmental International Panel on Climate Change) to be published by the Science and Environmental Policy Project, Arlington Virginia.” The NIPCC? Seems this is something Fred Singer at SEPP has set up as a counterblast to the IPCC, and its report is due soon. From Fred’s The Week That Was for Sept 1st:
Highlights of the NIPCC Report
- Demonstration of the insignificance of human contribution to current warming â€“ using the â€˜fingerprintâ€™ method â€“ and why future anthropogenic warming is negligible
- Why climate models do not agree with observations â€“ the role of feedbacks
- Evidence that solar activity controls most climate change on a decadal time scale
- Evidence that future warming will not accelerate sea level rise appreciably
- No evidence for more storms, hurricanes, droughts, and floods as climate warms
- How we know that a warmer climate is better than a colder one
- Evidence that the Medieval Period was warmer than today
- Evidence that pre-1940 warming was not anthropogenic
- Problems with data quality and special problems with sea surface temperatures
- Uncertainties about the CO2 budget, past and future â€“ and of future emission scenarios
- Changes in ocean heat storage, glacier length, and sea ice coverage indicate climate change â€“ but not whether the cause is anthropogenic or natural
That’s a mind-boggling list. If all the papers show the – how shall I put it politely – “rigorous” approach to the science that Dr Gray demonstrates, the NIPCC report will be a real paradigm shift. Or perhaps not.
Regular readers will know that I’ve been keeping a close eye on this year’s Arctic summer, and the record minimum sea ice extent reached last month (nice NASA picture here). The ice area is increasing now, but is still about 1m km2 below the same time last year. I might have to increase my bet… If all the summer Arctic sea ice disappears quickly, it won’t have any impact on sea level, but if the ice on land – mountain glaciers and the great ice sheets of Greenland and the Antarctic – melts, sea level will rise. During the last interglacial, about 125,000 years ago, global temperature was a degree or two warmer than today and sea level was about 5m higher. Some of that extra water came from Greenland and Antarctica.
When I was writing Hot Topic, the latest information suggested that Greenland was losing about 200 km3 (cubic kilometres) of ice every year, and Antarctica about 150 km3 (HT, p45). But time goes on, and the world warms. A study to be published in Geophysical Research Letters suggests that the glaciers of southeast Greenland are now losing 300 km3 of ice per year, a 400% increase in melt rate since 2004. AFP reports:
â€œUntil 2004, the glacier mass in the southeastern part of the island lost about 50 to 100 cubic kilometres (12 to 24 cubic miles) per year. After this date, the melting rate accelerated to 300 cubic kilometres per year. It’s a jump of 400 percent, which is very worrying,â€ National Space Center head researcher and project chief Abbas Khan told AFP. […] The measurements indicated that the mountains hugging glaciers in the southeastern part of Greenland rose four to five centimetres (1.5 to two inches) per year, and that the banks of the glaciers thinned 100 metres per year.
Continue reading “Time to buy new wellies”
I’m a sucker for pretty computer graphics, especially if they’re didactic. Today’s discovery is a superb Flash animation of the sea level history of Australia and New Guinea, lovingly prepared by Monash University‘s new SahulTime project [ABC coverage here]. From the web site:
The concept of SahulTime is similar to GoogleEarth, except that SahulTime extends each of GoogleEarth’s paradigms through a further dimension in time. Satellite-style images change to reflect coastlines, the icons are time-aware, and even photographs can can be taken through a timewarp to view reconstructed ancient landscapes.
You drag a pointer back along a profile of how sea level has changed over the last 100,000 years, and watch how Australia’s coastline changes, merging with New Guinea. Fantastic. Can we have one for New Zealand, please?
- Al Gore’s film An Inconvenient Truth has been passed by a UK High Court judge as fit to be seen by UK schoolchildren, but only with changes to the accompanying teacher’s notes to clarify nine scientific â€œerrorsâ€. News media are buzzing: a few samples – Herald, BBC, and Guardian (UK). The BBC’s environment correspondent provides some context, and Stoat (aka climate scientist and ice gambler William Connolley) looks at how serious the mistakes really are. The right wing roots of the court case are explained by Oil Change International, and one of the â€œexpertâ€ witnesses looks like it might have been the NZ CSC’s own Bob Carter. Not surprising then that former ACT MP Muriel Newman’s NZ Centre for Policy Research site is all over the issue – though she manages to find two extra bonus â€œerrorsâ€ from somewhere. Read the judgement in full here. Real Climate’s original review supports the judge’s finding that AIT gets the basic science right.
- New Scientist reports on a Canadian study that finds that to keep global temperature under the EU’s target of 2C above pre-industrial levels, cuts of 90% of emissions will be needed by 2050, much deeper than the 50% reductions already promised.
- The new edition of popular computer game SimCity is to feature global warming, offering players high and low carbon energy options – sponsored by BP. A sign of the times….
Our little band of climate cranks couldn’t let an opportunity as big as the NZ Emissions Trading Scheme announcement pass by unremarked. And they didn’t. First out of the blocks was Bryan Leyland, “Â€Âœchairman of the economic panel of the New Zealand Climate Science Coalition”, pre-empting the ETS announcement to complain about the government buying offsets for ministerial travel with a press release headed “Â€ÂœIs your carbon tax really necessary?”
“Â€ÂœIf there is no evidence of man-made warming in New Zealand – and in the world – this whole charade of cap and trade, and offsetting ministerial travel emissions, should cease forthwith before any more damage is done to our internationally fragile economy.”
Leyland’s views were echoed a couple of days later by a release from Owen McShane, “Â€Âœchairman of the policy panel of the New Zealand Climate Science Coalition” (the NZ CSC appear to have enough panels to decorate a small stately home)…
Continue reading “Cranky about the ETS”
Researchers at the Hadley Centre in Britain have produced the world’s first short range climate forecast, covering the next ten years. And there are no surprises, it’s going to get warmer. From New Scientist:
Although average global temperatures have been relatively flat in recent years, the model says they will start rising again next year. At least half of the years between 2009 and 2015 will exceed the current warmest year on record. By 2015, global temperatures will be 0.5 Â°C above the average value for the last 30 years.
[More from the BBC, Guardian, Telegraph, Nature]
Continue reading “First forecast for the next ten years”