by Mike Bailey
I am a retired Surveyor who spent his whole career (1965 to 2010) measuring and recording:
- Water depths, to enable safe navigation of ships and boats into harbours.
- Coastal features, such as shorelines and beaches, to monitor changes in depth that occur over time.
- Near shore constructions, such as sea walls, groynes wharves, piers and jetties and boat ramps to monitor their effect on the surrounding areas.
In order for these depth measurements to have any coherence they have to be related to a common reference level. In Australia this common reference level or Datum is the Australian Height Datum (AHD).
AHD is a mean sea level datum and was established by analysis of data from recording tide gauges which operate in ports around Australia and which in some cases have been operating for around a century. (see below) I have not found any proposal that this datum be changed due to the rising sea level.
Continue reading “The Rising Sea Level Scare”
By Pamela Matlack-Klein
For decades now the IPCC and other alarmists have been threatening us with the ugly spectre of hugely accelerated sea level rise (SLR). Fortunately, none of their dire predictions have come to pass yet this has not caused them take a look at just how ludicrous their predictions really are.
During this time, sea level has continued to putter along just as it has for the past 150 years, at a minuscule rate of about 1-1.5mm/year. This is a very tiny amount of SLR, not even noticeable by the average human. In fact, a person living on the coast of almost any country for 80 years would not notice any change in sea level, from childhood through retirement.
Given that the majority of people tend to live in coastal zones, it is baffling how anyone can give credence to any of the wild claims of METERS of SLR by the end of this century. A rise of 0.30m would be very obvious if it occurred in a matter of just a few years. But when it is spread out over 100 years, with the natural ebb and flow of the tides, it just looks like business as usual. Continue reading “Land and Sea Go Up and Down”
- There has been NO significant sea level rise in the harbour for the past 120 years, and what little there has been is about the height of a matchbox over a century.
- Along the northern beaches of Sydney, at Collaroy there has been no suggestion of any sea level rise there for the past 140 years. Casual observations from Bondi Beach 1875 to the present also suggest the same benign situation.
- A rush to judgement by local councils and State Governments by legislating harsh laws and building covenants along our coastlines now seems misplaced.
- The falsehoods and mendacity of the IPCC and climate alarmists should be rejected out of hand, and efforts be made to ensure that science, not propaganda, defines our school curricula in matters of climate and sea levels
Full article: https://saltbushclub.com/wp-content/uploads/2019/02/sea-levels-sydney.pdf [PDF, 3 MB]
By Thomas Lifson
Global warming has a big problem: its predictions of doom have consistently failed to generate any serious pain. Yes, they blame hot weather in the summer in global warming, and if there are hurricanes, they must be caused by “climate change,” though when we have a year with few hurricanes, or, as in 2018 no tornadoes at all, nobody sings the praises of the benefits of “climate change.”
But they’ve hit a gold mine with their predictions of island nations being sunk beneath the waves, and coastal communities (especially in rich countries) forced to be abandoned. Their institutional clout is considerable, as they have Big Science, Big Education, Big Government, and Big Business all on board with their scheme to extract money from people for the crime of using energy (while exempting wealthy members of their elite from the strictures). Especially when there’s money to be made from fear-mongering.