Climate Change

Avenger said:
Exactly. A nation of fools that don't have the slightest clue about engineering or thermodynamics thrown in a panic by the media, spoon-feeding fear. Pretty much all they do. Good for ratings, you know.

I was just watching a documentary about the Concorde and of course they show the protesters. One of these morons is holding a sign about protecting the ozone layer. Ummmm, the Concorde created ozone when it flew. And it created it at altitude, where it would benefit the ozone layer. Low altitude ozone is bad. We call it smog. Up there it's supposed to protect us from UV. But here's someone who's so concerned about the planet that they took the time to make a sign and go to a protest,... making a claim that is 180° away from the reality. Doesn't matter. They DID something.

Whatever happened to the ozone crisis anyway? I guess it served it's purpose and we've moved on?
Click to expand...

Ozone is bad for us if we breathe it, but valuable to have up high in the atmosphere.

Some things are bad for us to breathe, but serve useful purposes. Chlorine gas can be a valuable disinfectant, but will kill you if you breathe too much of it.

Ozone, a triple molecule of oxygen atoms, is the same way. Ozone at ground- level is an air pollutant that is a key component of smog, harmful to breathe, and can damage to crops, trees and other vegetation. However, ozone in the stratosphere, where we do not come into contact with it, forms the "ozone layer", which extends upward from about 6 to 30 miles and protects life on Earth from the sun's harmful ultraviolet (UV) rays.

Similarly, CFC emissions are harmless in the lower atmosphere, but are still believed to rise to the ozone layer and diminish its effectiveness. Anti-CFC regulations are still in force, even if most folks are tired of hearing about the ozone layer. Here's a 2018 report from NOAA on ozone depletion. Scientific Assessment of Ozone Depletion: 2018
 
wrong again!!

Freon is a brand name trademarked by the DuPont company for a refrigerant blend used in air conditioners known as R-22.May 17, 2021

Is Freon and refrigerant the same thing?


Freon is a brand name of air conditioning refrigerant trademarked by DuPont. So you definitely have refrigerant in your air conditioner, but you may or may not have the brand Freon. However, Freon has become synonymous with the word “refrigerant” similar to how the brand name “Kleenex” is synonymous with “tissues”.

What is Freon? - Refrigerant HQ​

https://refrigeranthq.com › what-is-freon



Dec 2, 2018 — The term or name Freon is commonly used all over the country to describe what is ... In fact, the name Freon is a brand of refrigerant.
 
Chlorine is the harmful element in CFC and HCFC refrigerants. R-12 has a lot of Chlorine and its manufacturing has been banned since 1996. It still can be used and old stock can be purchased and sold. R-22 has less chlorine and it's currently being phased out.

R-134a has no chlorine so it does not harm the ozone. It replaced R-12 in the mid 90s. However now, 134a was discovered to be a greenhouse gas and is due to be phased out in the coming years. Most new automobiles use R-1234yf which has no chlorine and a very small global warming impact. It is expensive however.

Freon is just an old brand name usually referring to R-12 or R-22.
 
If you have a new car with R-1234yf and need a recharge, can they put in R134a ? Not talking legalities but if they mix.
 
pequa1 said:
If you have a new car with R-1234yf and need a recharge, can they put in R134a ? Not talking legalities but if they mix.
Click to expand...
No totally different they will not mix after a little digging you might be able to convert over to R134A
 
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