The faithful followers of the global warming religion tell us that the CO2 gas is evenly distributed throughout our planet’s atmosphere. It is, they say a powerful “greenhouse gas” and that a very small increase in its concentration above present levels will dramatically change the climate on Earth. I find this very hard to believe, as amateur observation, intuition and common sense tell me that it cannot be so.
The other day the sun shone all day out of a clear blue sky and warmed the ground and the air. It was a perfect Spring day. That night, however, the clear cloudless sky allowed all the heat of the day to be radiated back into space, so the following morning started with a hard white frost on the ground.
What does this tell us? It suggests very clearly to me that, at a concentration level of 380 or so parts per million, CO2 gas, which was certainly present that night in the atmosphere above and around my house, could not prevent all the sun’s heat of the previous day from being lost into space. This demonstrates that atmospheric CO2 is not very effective as an insulating medium. Before anyone argues that I’m talking about one particular night in one particular place, and that no conclusions can be drawn from this example, let me point out that this rapid cooling of Earth on clear nights is known the world over – even in the hottest places on Earth such as the Sahara desert, temperatures will plunge to near freezing on clear nights.
On overcast nights, however, it is also well-established fact that the Earth does not lose so much heat by radiation to the sky, with the result that night time temperatures don’t fall so dramatically. Again, this effect is known in every part of the world. It is therefore clear that water vapour which makes up the cloud cover that is responsible for this clearly demonstrable insulating effect, but which, unlike CO2, is not evenly distributed throughout the Earth’s atmosphere, is by far the most important greenhouse gas. In comparison, the effect of CO2 as a contributor to the “greenhouse effect” is very minor. You don’t need to be a genius, or even a University of East Anglia scientist, to work that out.
The Global Warmers tell us that man-made CO2 emissions could be increasing the concentration of the gas in the atmosphere at a rate as high as 0.5% per year. At this modest rate of increase, bearing in mind the demonstrably ineffective insulating qualities of the gas, I would suggest that we stop worrying about it and make a diary note to give the matter some further consideration in, say, about 500 years time.
If long-term global warming is happening, which is not out of the question, but is not proven, man-made CO2 is not the culprit. That being the case we should recognise that we’re not in a position to do anything to slow or reverse the trend. Instead, we should spend the next couple of hundred years adapting our way of life to suit slightly warmer (or equally possibly cooler) climate conditions.