GarryB wrote:Maybe the solution is being proactive... a large electric powered airship lifting thousands of bottles of O3 to be released directly into the ozone layer to boost its size and shape and density...
And then finding refrigerants that do break down that are safer...
Seeding the ozone layer could give us more time and more leeway to find a more permanent solution.
Obviously more research into what makes up the various layers of the atmosphere and their effects on conditions on the surface of earth would be a good thing... we don't want to fix something only to find it breaks something else...
A lot of people after watching TV and Movie treatment of science have no idea how difficult it can be. Throwing some time and money
at science problems is not guaranteed to result in a linear progression to solutions and advances. In the above case we have a refrigerant
that does not destroy the ozone layer but exposes life to long lived decay products that are more than likely carcinogenic. It is like
whack a mole. Solving one problem can and often does create new problems. Industrial pollution is an example of this. Lots of
production line functionality comes at the expense of a toxic legacy.
To some extent it is a matter of research investment. It jut so happens that ammonia (NH3) is a good refrigerant and does not
destroy the ozone layer since it is chemically destroyed in the troposphere. CFCs and other more stable compounds last longer and
get chemically destroyed by photolysis in the upper stratosphere. NH3 has been known for a long time but there is a phobia of it
being toxic and able to cause blindness. That dates back to those old fridges where people would use ice picks to get rid of the
freezer ice and puncture the coolant tubes. Obviously this a non-issue today. In the case of cars even there is a car wreak where
the ammonia coolant escapes it is not going to kill the occupants of the car since it is venting into the atmosphere and not into
their eyeballs. NH3 is rather volatile so it lofts rapidly away from the surface. Like H2. People are full of ridiculous phobias resulting
from ignorance and misinformation.
I suspect the use of custom chemicals instead of widely available NH3 is a racket. Somebody is making lots of money selling a boutique
item (the specialized refrigerant) instead of the cheaper ammonia.