Tipping Points

By Graham Pinn

The Intergovernmental Panel for Climate Change (IPCC) describes a tipping point as a “critical threshold beyond which a system reorganises, often abruptly, and/or irreversibly”. Their examples include melting polar ice with sea-level rise, increasing extreme weather events, and release of methane from thawing permafrost; currently nine potential such events have been identified, none currently occurring.

When initially discussing such events, the IPCC believed a temperature rise of 4C would be necessary for these events to occur, this figure was progressively revised down, to a 1.5C rise making them more probable, the latest figure is 1.5 – 2.5C. When looking back, to what we know has occurred historically, even the concept of temperature increase depends on the starting point.

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The chronology of the Climate Change / Global Warming debate

By R. G. McKellar

Early Science.

The Swedish chemist Arrhenius published a significant advance toward the mathematical treatment of global climate in a paper published in 1896. Until that time the dynamics of a rotating planet with the familiar passing of daylight into night had defied scientists. Aarhenius devised a simplified model with the surface area of the Earth converted to a flat disc receiving solar energy at the rate of one-quarter of the incoming flux at the equator (at the equinox). All temperatures were treated as global averages—-a very difficult thing to do when most stations recording temperature were in the northern hemisphere & on land. The method employed an Ideal Atmosphere, which unfortunately did not include water vapour. Water vapour, by its volume, is the most important Greenhouse gas, and by its phase changes solid>liquid>gas>liquid>solid>gas, heat is extracted or released into the atmosphere.

Currently, all computer models use Arrhenius’ basic maths. Aarhenius arrived at the conclusion that there would be a welcome 3-4 degrees C of European warming in the 20th century—-a very high estimate ( versus ~1degreeC later observed), and much like that coming out of climate models from various universities and meteorological offices to this day. Interestingly, Aarhenius in a 1906 paper did acknowledge the importance of water vapour, but that was subsequently over-looked .

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Revisiting Al Gore’s Convenient Untruths

By Dr. John Happs

“I believe it is appropriate to have an over-representation of factual presentations on how dangerous it is, as a predicate for opening up the audience to listen to what the solutions are, and how hopeful it is that we are going to solve this crisis.”

Quote by Al Gore, former U.S. vice president, and promoter of climate alarm:

https://grist.org/article/roberts2/

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Last Minute Interference by Al Gore and the ABC into the Australian Election

by Viv Forbes, Executive Director, the Saltbush Club, Australia.

The Saltbush Club today called for an enquiry into a last minute intervention by an American politician, Al Gore, into the Australian Election.

The Executive Director of the Saltbush Club, Viv Forbes, said that in such a tight election race, the intervention of someone with the international stature of Al Gore, assisted by the climate activist Australian Broadcasting Commission, could easily change the result of the election.

The Gore intervention was not subtle – he labelled the LNP government climate policy as ‘not credible’ and taking the country ‘in the wrong direction’.

Becoming even more partisan, Gore praised the opposition Labor plan ‘as an extremely significant act of leadership on the part of Australia.’

This carefully timed intervention in a closely fought Australian election by a prominent foreign politician is a blatant attempt to promote a damaging climate agenda already rejected in the USA.

This surely justifies an enquiry into foreign electoral interference and ABC complicity.

https://www.news.com.au/technology/environment/climate-change/al-gore-weighs-in-on-australian-election-urges-australia-to-choose-the-right-path/news-story/c3c1e791154a695c74ced417a56ccd1e