There is no Climate Emergency !

Reposted from edmhdotme

What if there is no Catastrophic Risk from Man-made Global Warming ?

What if Man-made CO2 emissions are not the “Climate Control Knob” ?

What if Man-made CO2 emissions really are a non-problem ?

But what if there is a real Global Cooling Catastrophe in the offing ?

It is the propaganda of Catastrophic Global Warming / Climate Change alarmists that has illogically conflated Carbon Dioxide, the beneficial trace gas that sustains photosynthesis and thus all life on earth and which may cause some minor warming, with real and dangerous pollutants to create the “Great Global Warming Scare / Climate Change Scare / Climate Emergency / etcetera”, with their “we are all going to fry in the next few years” narrative”.

The temperature progression of Greenland Ice Cores, (during the Holocene interglacial above), shows that each high point in the past of our current benign epoch:

  • Optimum
  • Minoan
  • Roman
  • Medieval
  • Modern

has been colder than its previous high point.

For the last 3 millennia, since 1000BC, cooling has been progressing at a rate considerably higher than during the earlier Holocene that encompassed the highest temperature of the Holocene Climate Optimum.

As the Holocene epoch is now some ~11,000 years old, experience of recent previous interglacials shows that, on a geological time scale, it could well be ending quite soon.  It is therefore much more likely that the Holocene will continue to cool at at least its current rate, as it has done for the past 3 millennia, unless it terminates much more suddenly like earlier interglacials.

As a result of the failure to appreciate elementary arithmetic,  physics and biology, the Western world has been forced to indulge in a massive guilt trip about its industrialised civilisation, with endless predictions of impending global overheating catastrophes.  But instead it is likely that modern Holocene warming during the 20th century and particularly just at the end of the 20th century is:

  • beneficial to the biosphere and Man-kind
  • within normal limits
  • sadly may be not now even be occurring at all.

The probability is that any current global warming is not primarily Man-made and in any case it could be not be influenced by any remedial action, however drastic, taken by a comparatively small part of the Global population, the developed Western democracies.

So that prospect should be greeted with unmitigated joy.

If it is so:

  • all concern over CO2, as a man-made pollutant can be entirely discounted.
  • it is not necessary to degrade the Western world’s successful capitalist economies to no purpose.
  • if some warming were happening it would lead to a more benign and healthy climate for the biosphere and mankind.
  • any extra CO2 has already increased the fertility of all plant life on the planet.
  • if it is occurring at all, a warmer climate within natural variation, would provide a future of greater opportunity and prosperity for the biosphere and for human development, as has frequently been well proven to be BENEFICIAL in the past.
  • a warmer climate would now be especially beneficial for the underdeveloped world.

The role of Atmospheric CO2

Apart from accepting and emphasising the the role of water vapour and clouds in the “Greenhouse Effect” these notes use conventional Intergovernmental Panel on Climate Change, (IPCC), wisdom to calculate the temperature effect of CO2.  Any realistic climate policy should be based on the following points on recognising the role of natural atmospheric CO2 and Man-made CO2 emissions:

  • The warming Greenhouse effect is essential to all life on earth, without it amounting to ~+33°C planet Earth would be a very cold and inhospitable place indeed.
  • The greatest part of the Greenhouse effect, (~90% – 95%) arises from water as vapour and clouds in the atmosphere.

https://www.geocraft.com/WVFossils/greenhouse_data.html

  • The major role of water as vapour or clouds is fully acknowledged by the Intergovernmental Panel on Climate Change, IPCC.
  • Nonetheless the IPCC only concentrate their alarmist views on Man-made CO2 emissions.  This is hardly surprising, after all the adverse role of Man-made CO2 emissions and their supposed impact on climate is built into the IPCC mission statement and mandate.

https://www.ipcc.ch/site/assets/uploads/2018/02/WG1AR5_Chapter08_FINAL.pdf      (page 666 of the IPCC assessment.)

  • Instead atmospheric Carbon Dioxide is the very stuff of life and any higher concentrations would be beneficial.
  • The world needs its atmospheric CO2 for the survival and fertilisation of all plant life.
  • Atmospheric CO2 is essential for PHOTOSYNTHESIS in plants, it thus supports all life on earth
  • Atmospheric Carbon Dioxide CO2 is therefore in no way pollutant.
  • At about half the current atmospheric concentration of CO2, plant Photosynthesis falters and the world soon dies.
  • In comparison with its Geological past the World is still in a period of CO2 starvation, because most of the CO2, once at least 10 times more abundant in the atmosphere when plants evolved, has since been sequestered by microscopic life in the oceans as limestone, Calcium Carbonate.

CO2 concentrations came close to the fatally low level, (~150 ppmv), during the last ice age, 110,000BC – 10,000BC.  As Colder oceans absorb more CO2 and ocean life sequesters it as limestone.  That dangerously low level of atmospheric CO2 could well be exceeded in any coming Ice Age.

This is the way our world will eventually die of atmospheric CO2 starvation in some future glacial period.

Increasing CO2 concentration, mainly arising from slightly warmer oceans outgassing CO2, has been promoting plant growth throughout the planet and has been reducing the water needs of plants.  According to NASA, ~15% extra green growth across the planet is already attributable to the relatively recent beneficial increase in CO2 concentration.

https://www.nasa.gov/feature/goddard/2016/carbon-dioxide-fertilization-greening-earth

Man-kind as a whole contributes only a small amount of the CO2 to the Carbon cycle, (~3% per annum), and any extra atmospheric CO2 is rapidly absorbed by the oceans and the biosphere, (with a half-life probably as short as ~5 years).

Atmospheric CO2, whether Man-made or mostly naturally occurring, is not a pollutant.  If any extra CO2 were to have some minor warming effect, it would be all to the good. 

See  Patrick Moore  2016   Frontier Centre for Public Policy.

However added CO2 from Mankind’s use of fossil fuels is unlikely to be sufficient to avoid the adverse cooling effects of the coming end of Holocene interglacial.

The diminishing warming effectiveness of increased atmospheric CO2 concentrations.

In spite of the hysterical propaganda, there is no straight-line relationship between CO2 concentration and global temperature.  In spite of the UN IPCC propaganda, atmospheric CO2 concentration is not a control knob on Global temperature.

The effectiveness of CO2 as a warming Greenhouse gas rapidly diminishes logarithmically as its concentration increases.  The consequence of this logarithmic diminution mean that all further CO2 induced temperature increases can now only be:

  • absolutely marginal
  • that there is no chance of any further Catastrophic Global warming from increased atmospheric CO2, whether Man-made or not.

In other words there cannot be “an enormous Climate Emergency” caused by further increases in Man-made emissions of CO2.

This logarithmic diminution effect is caused by the overlapping energy wavelengths between greenhouse gasses and water vapour in the atmosphere.  As a result at the current level of CO2 concentration in the atmosphere at ~400 ppmv, the effect of CO2 as a Greenhouse gas is close to being fully saturated.

An analogy of the CO2 diminution effect with increasing concentrations, can be pictured as if one was painting over a window with successive layers of white paint.  The first layer will still be fairly translucent, but subsequent layers will progressively reduce the translucency until the window is fully obscured and thereafter any further paint layers can make no further difference to the fact that the window is already fully obscured. 

A concentration of atmospheric CO2 greater than 200 ppmv, equivalent to ~77% of CO2’s Greenhouse effectiveness, is essential to maintain plant life and thus all life on earth.  Plant life would be entirely extinguished with CO2 levels at ~150ppmv.

CO2 is not causing global warming

At the current CO2 level of ~400 ppmv, ~87% of the effectiveness of CO2 as a Greenhouse gas is already exhausted:  only 13% of the warming effectiveness of CO2 remains even up to 1000ppmv.

There is now so little of the potential of CO2 as a greenhouse gas now remaining that there is now no possibility of ever reaching the “much feared” +2.0°C : +1.5°C temperature rise or more predicted by alarmists.

When compared with CO2, Water Vapour and Clouds play a much more significant role in the Greenhouse effect.  Methane and other warming Greenhouse gasses play an even less important and only a very marginal contribution to the Greenhouse effect.

The range of published scientific views on the significance of atmospheric Water on the Greenhouse effect ranging from 98% – 75% is shown below.  The further residual CO2 warming available across this range of assertions up to a concentration of 1000 ppmv or some 2.5 times the present CO2 concentration.

The further residual CO2 warming available across this range of cases up to a concentration of 1000 ppmv, some 2.5 times the present CO2 concentration.  Beyond 1000ppmv the temperature increasing capability of atmospheric CO2 can be discounted. 

So from now on increasing CO2 in the atmosphere can only lead to very limited further warming and certainly not to any catastrophic and any dangerous temperature increase. 

These calculations therefore show that Climate Sensitivity to the doubling of CO2 concentration range from 0.17°C to 0.33°C.t ow.

Logarithmic diminution operates as follows:

via Watts Up With That?

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May 22, 2020 at 04:32AM

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