Tuesday 20 December 2022

LEADING CLIMATE SCIENTISTS SAY 21ST CENTURY WARMING MAY NOT BE DUE TO GREENHOUSE GASES

Here is the article giving the details for this claim:

 21st century warming trend change may not be due to greenhouse gasses, leading climate scientists say - Net Zero Watch

Despite all of the uncertainty, Western governments continue to pursue net zero policies which are increasing the cost of energy, leading to poverty and a lower standard of living. Surely a change is imminent?

6 comments:

  1. Going into other sources I have is that the satellites are noticing less infrared frequencies of energy leaving the earth's atmosphere in the GHG frequency ranges. As we put instruments on the ground, we see increases in energy based in the frequency ranges of the GHGs. This is a rock solid basis in science. This is physics.


    https://en.wikipedia.org/wiki/Earth%27s_energy_budget#Role_of_the_greenhouse_effect

    Because greenhouse gas molecules radiate infrared energy in all directions, some of it spreads downward and ultimately returns to the Earth's surface, where it is absorbed. Earth's in-situ surface temperatures are thus higher than they would be if governed only by direct solar heating. This supplemental heating is the natural greenhouse effect.[19] It is as if the Earth is covered by a blanket that allows high frequency radiation (sunlight) to enter, but slows the rate at which the longwave infrared radiation leaves.

    As viewed from Earth's surrounding space, greenhouse gases influence the planet's atmospheric emissivity (ε). Changes in atmospheric composition can thus shift the overall radiation balance. For example, an increase in heat trapping by a growing concentration of greenhouse gases (i.e. an enhanced greenhouse effect) forces a decrease in OLR and a warming (restorative) energy imbalance.[20] Ultimately when the amount of greenhouse gases increases or decreases, in-situ surface temperatures rise or fall until the ASR = OLR balance is again achieved.

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  2. Yes, you have described the greenhouse effect, but the point is that the change in response to human CO2 emissions is so small (about 2 watts per square meter) that it is very hard to detect its effect on temperature as it can be swamped by other natural effects, such as changes in cloud cover. Do watch Dr Christy's Q&A video, as he has the ability to put it across in such an understandable way.

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  3. 2 watts per square meter is a serious problem. 1.5*C to 2.0*C increases the danger of climate change as born out in the science.

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  4. The "science" is not fixed, it is an ever developing picture with still much more to find out. The 1.5 to 2.0C limit is purely political, designed to scare the public. But the public aren't stupid, they can see for themselves from their own experience that the climate is no more extreme now than it has always been. The public are much more worried about the cost and reliability of electricity.

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    Replies
    1. You have just declared 70 peer reviewed science papers political. That is your burden to prove. This is just the start of a very detailed discussion on the past present and some on what the future could be. Natural warming of the past is easily surpassed by our own pollution of today.

      https://en.wikipedia.org/wiki/Effects_of_climate_change


      Global warming affects all elements of Earth's climate system.[21] Global surface temperatures have risen by 1 °C and are expected to rise further in the future.[21][22] Night-time temperatures have increased faster than daytime temperatures.[23] The impact on the environment, wildlife, society and humanity depends on how much more the Earth warms.[24]

      One of the methods scientists use to predict the effects of human-caused climate change is to investigate past natural changes in climate.[25] To assess changes in Earth's past climate scientists have studied tree rings, ice cores, corals, and ocean and lake sediments.[26] These show that recent warming has surpassed anything in the last 2,000 years.[27] By the end of the 21st century, temperatures may increase to a level not experienced since the mid-Pliocene, around 3 million years ago.[28] At that time, mean global temperatures were about 2–4 °C warmer than pre-industrial temperatures, and the global mean sea level was up to 25 meters higher than it is today.[29]

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  5. There is a lot of evidence for the Medieval Warm Period of less than 1000 years ago being warmer than today, but this evidence is being excluded from IPCC reports. See here:
    https://climatescience.blogspot.com/2021/09/medieval-warm-period-erased-by-ipcc-new.html

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