Well done, Evelynne Roullet (Posted March 1, 2017 at 11:59 …

Comment on Extreme variability: local climate change right now by Alex Nelson.

Well done, Evelynne Roullet (Posted March 1, 2017 at 11:59 am) for a most informative comment; and in the chronology you provided I was most taken by the entry for 1938 about British engineer Guy Callendar who showed from data obtained from numerous weather stations around the world that temperatures had increased compared to the previous century, a finding widely dismissed by meteorologists.
I compare this to the treatment meted out to German meteorologist Alfred Wegener who early last century compiled observations on geological and palaeontological evidence indicating the continents were once linked together. This information was well known but scientists generally accepted the explanation that there had been land-bridges between continents that had subsequently sunk below the oceans. In 1915 Wegener published a book proposing instead that the continents had once been all joined together and subsequently drifted apart.
This theory prompted huge controversy from scientists (especially in Britain, perhaps unsurprisingly) and basically the concept of continental drift was rejected on the basis of insufficient evidence and no explanation of any known force sufficient to move continents. Wegener was regarded as a crackpot, notwithstanding his reputation for research into polar climatalogy; and he perished for his work in Greenland in 1930.
It wasn’t until the mid 1960s when global mapping of the Earth’s ocean floors commenced that evidence came to light supporting the theory of continental drift. Mid-ocean ridges and alternate magnetic banding of seabed rock strata began the revelation of abundant evidence that the world’s land masses are indeed drifting on tectonic plates (incidentally, Australia is the fastest-moving continent on Earth). Today continental drift is completely accepted as a verified fact.
Wegener’s sad experience ought to be a salutory lesson to us all; and for myself it provides an extremely valuable analogy to the populist debate that swirls around the validity of evidence for climate change.
We discount or reject that evidence at our absolute peril.

Alex Nelson Also Commented

Extreme variability: local climate change right now
This is a most important and timely story.
I’m one of those very few non-indigenous individuals who has lived here all my life. I was born in 1963 in the middle of one of the worst droughts on record. Since that time nearly every weather record in Central Australia has been broken, many of them more than once. Ironically, one record still standing since before my arrival is the hottest maximum temperature in the NT, set at Finke a couple of years earlier, but we’ve gotten close on occasion and it’s only a matter of time before that one falls.
One of the major impacts of the 1960s drought that reverberates to this day is the rise to dominance of buffel grass in Central Australia. The drought was a major impetus into extensive research to mitigate the enormous dust storms that frequently smothered Alice Springs, and buffel grass proved to be the ideal panacaea.
When I worked for the Rangeland Management Section at AZRI over a quarter century ago, one of the management problems for pastoral properties was how to deal with the problem of increasing “woody weeds”, especially mulga, witchetty bush and ironwood trees, which suppressed natural pastures and were largely resistant to control by fire, the only economically viable control method.
The increasing dominance of buffel grass across the region has, in my opinion, tipped the balance in favour of a major wildfire risk which, combined with the increasing severity of weather events, now poses an extreme hazard for us all in Central Australia. There have already been several serious wildfires in the vicinity of Alice Springs following above-average rainfall periods since the turn of the century, which I think are indicative of much worse to come.


Recent Comments by Alex Nelson

Minister Lawler determined to demolish Anzac High
@ James T Smerk (Posted July 21, 2019 at 12:09 pm): Uh huh, and there were people like you who said the same kind of thing about all other heritage listed places in town that barely avoided the bulldozers.
How little do you know!
That old school was once the pride of Alice Springs and a major tourist attraction – yes, truly it was!
Because that’s where the world-famous School of the Air was located from 1954 to 1968 – and there’s no reason why that can’t happen again.
Isn’t it easy for the instant experts to make pronouncements from a position of ignorance – I mean, have you or the other critics actually bothered to find out about the building’s true history?
No, I thought so.


‘Catastrophic’ drop in construction work
@ Evelyne (Posted June 28, 2019 at 3:15 pm): Perhaps you should ask people working within the public service/bureaucracy about the difference between democracy and tyranny. On second thought, don’t bother – they all have to keep their mouths shut.


‘Catastrophic’ drop in construction work
@ Interested Darwin Observer (Posted June 28, 2019 at 8:04 am): Oh! Are we a democracy?


Alice to get first Aboriginal owned earth ground station
If I recall correctly, the Geoscience Australia Antenna commenced operation as a Landsat receiving station in 1979, so this year marks its 40th anniversary.
Our family was living at the CSIRO residence by Heath Road at the time, now the Centre for Appropriate Technology.
There was one funny occasion when my brother was wandering around in the paddock nearby the new facility, and wherever he went the antenna would swing around and point towards him.
I think he got a bit spooked by it but it was the technical officers in the adjoining demountable lab that were just having a bit of fun.


Architect of Katherine’s masterplan to be Alice council CEO
This is tremendous good news for Alice Springs. I shall put on hold my plans to move to Katherine 🙂


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