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srid  18d ago (cafeamericainmag.com)   Edited 18d ago   2984 thread views

The Vacuity of Climate Science

cafeamericainmag.com

There has been a lot of CW discussion on climate change. This is an article written by someone that used to strongly believe in anthropogenic global warming and then looked at all the evidence before arriving at a different conclusion. The articles goes through what they did.

I thought a top-level submission would be more interesting as climate change is such a hot button topic and it would be good to have a top-level spot to discuss it for now. I have informed the author of this submission; they said they will drop by and engage with the comments here!

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I can't comment on most of this, except the following:

This makes it all the more peculiar that nobody has been able to experimentally demonstrate and therefore verify the greenhouse effect.

Wouldn't the existence of Venus be pretty definitive proof that such a thing is possible?

Will wait for author to signup and post, but meanwhile this may be relevant:

https://twitter.com/DaleCloudyman/status/1779113392747249970

https://greenfallacies.blogspot.com/2021/10/greenhouse-gas-effect-is-junk.html?m=1

From your second link:

A typical validation of the Stefan-Boltzmann’s law of radiation : is done by measuring the radiation from a filament of the incandescent lamp. The filament is enclosed in a vacuum.

A typical demonstration of radiative heat transfer is done in a vacuum, but that isn't a real requirement. You can instead compare the total heat transfer from a hot black plate (emissivity near 1) to the heat transfer from a hot silver plate (emissivity near 0). The black plate will have faster heat transfer despite being surrounded by the same air because it radiates more.

I'd like to see his calculations for "...the conductive and convective effects at the surface are vastly greater than the radiation; by about 240 times."

Venus has a very high albedo. Most sunlight is actually reflected away from the planet. Venus actually gets less net sunlight than earth! GHGE says Venus, without a greenhouse gas effect, should be cooler than earth!

No!!

Even if you assume the emissivity of the object (such as Venus) can be fully described in a single number (i.e. it is an ideal gray body), you're only describing the gross rate of radiative heat transfer. Any ideal gray body that was protected from conduction/convection would reach the same equilibrium temperature given the same surroundings; a high-emissivity one would absorb a lot of energy which is coming in and emit just as much, while a low-emissivity one would absorb a tiny bit of energy and emit just as little.

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