The most careful analysis of world sea levels suggests they are rising at between zero and 2mm per year. Measurements to this accuracy are questionable as they are complicated by changes in ocean currents and wind direction, and shorelines that may rise and sink.

Sea levels are never still, but with global temperatures flat and snow cover and polar ice steady, sea levels are probably as stable today as they ever get.

However, we still have creative climatists concocting complex computer models that predict dangerously rising seas to justify their goal to ban coastal development and to revive their failing war on carbon.

Alarmists should study earth history.

At the depth of our recent ice age, just 16,000 years ago, a thick sheet of ice covered much of North America and Northern Europe. 

So much water was locked up in ice that humans could walk on dry land from London to Paris, from Siberia to Alaska and from New Guinea to Australia. The River Rhine flowed across a broad coastal plain (which is now the North Sea) and met the Atlantic Ocean up between Scotland and Norway.

There was no Great Barrier Reef as Queensland’s continental shelf was part of the coastal plain, and rivers like the Burdekin met the ocean about 160 km east of its current mouth. Most of its ancestral river channel can still be recognised beneath the Coral Sea.

Then, about 13,000 years ago, with no help from man-made engines burning hydrocarbons, the Earth began warming. This was probably caused by natural cycles affecting our sun and the solar system, aided by volcanic heat along Earth’s Rings of Fire under the oceans.

The great ice sheets melted, sea levels rapidly rose some 130m and coastal settlements and ancient port cities were drowned and are being rediscovered, even today. 

As the oceans warmed, they expelled much of their dissolved load of carbon dioxide. The warm temperatures and extra carbon dioxide plant food caused vigorous plant growth. Permafrost melted, forests colonised the treeless tundra and grasses and herbs covered the great plains.

Iceball Earth became the Blue/green planet, supporting a huge increase in plant and animal life. 

Without any zoning laws to guide them, our smart ancestors moved ahead of the rising waters and adapted happily to the warmer climate with less snow, more rain, more carbon dioxide plant food and more ice-free land.

This warming phase peaked in the Medieval Warm Era about 1,000 years ago, when sea levels also peaked. They fell during the Little Ice Age, rose slightly during the Modern Warm Era, and are relatively stable now.

Rising seas are never a lethal threat to life on Earth. The danger sign is falling sea levels caused by a return of the great ice sheets. This would quickly put high-latitude farming into the deep freezer, thus creating widespread starvation. Trying to grow crops on emerging salty mudflats in an icy climate will give some future farmers a real climate concern. 

And despite World Heritage listing, when the next ice age comes the skeletons of the stranded Great Barrier Reef will become bleached limestone deposits on the coastal plain. The indestructible coral populations will abandon their marooned homes and build new reefs further out under the retreating seas.

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ZER5
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ZER5
Bonzer
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Bonzer

All good stuff, Viv. Could you tell me where you got that magnificent photograph attached to your article? I am a pilot, and would love to have a large copy of it on my wall.

RossMartin
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RossMartin

Another labor drone….as if that should be a surprise. They couldn’t run a two seated $hithouse.

johnno
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johnno

You failed to mention the absolute lies being peddled by some “experts” who claim that certain Pacific Islands are being inundated as a result of anthropogenic rises in CO2 and consequent “alarming” rises in sea levels: they all fail to address the FACT that water always seeks its own level and therefore how is it possible that some islands are experiencing more inundation and sea level rises than others? It is well known (but never mentioned) that atolls are prone to sinking – that, to quote that mega alarmist, Al Gore, IS the real inconvenient truth.

nookie
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nookie

Of course stupid Shorten will open the flood gates to Muslims again. It’s more votes for him. His ambition is to become Prime minister so he can have an assured and huge income for life together with his own office and staff including free travel paid for by you and me. The last thing on his mind is what happens to Australia because of his stuffups. Just compare how Australia is today compared to what it was at the beginning of Krudds reign and we have just been through the greatest export of coal & Iron ore ever. Not a… Read more »

Panda
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Panda

I was in the Solomons last year. Sitting with a local Pollie, who was enjoying his drinks. We got onto CC/GW etc. The Pollie told me “I believe in the CC/GW because every day I see it before my eyes. You can watch the sea rise twice a day, so we know what to expect. Why do you believe I asked. We believe because lots of countries give us heaps of money to say we believe. I rest my case…..

nfw
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nfw

where do you think the carbon (sic) taxes will be going?

OldRooster
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OldRooster

Nasty, brutish, and short? I thought you were talking about our very own Man in a State of Nature Bill Shorten! Especially as you left out solitary and poor.

aussiematters
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aussiematters

Old look it’s Viv Forbes, the guy that calls private property owners “vandals” because they stand up against his NGO mining buddies.

RudolphHucker
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RudolphHucker

Another nice piece Viv. thanks. why is it your stuff smacks of accurate truths, whilst so much other stuff comes over as codswallop?

Chloe-twd
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Chloe-twd

Thanks Viv, as usual, calm clear concise considered comment. It is so refreshing after the screaming shrill sanctimonious shouting we hear from the alarmists. Rationale without insult is much appreciated, Regards

Capt.Keith
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Capt.Keith

Could someone please explain why the unfounded claims of climate theorists are being inflicted on gullible school children?

Caio
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Caio