[kuehl]

Nick,
Many types of refrigerants reduce the protective ozone 'shell' above the earth.
When the ozone shell depletes move UV comes down (not good for the skin) and
global temps rise. You can google all of this.

There are many laws in various countries.

The 911, by the way, was not designed to leak over time. Rather its a fact that it does because there is 40 feet of old design rubber hose in it; such is why there is a discussion of the benefit of using barrier hose.


There are many sources of 'leakage to the atmosphere' when it comes to automobile air conditioning:
1) Leaky hoses, connections, compressors, and evaporators are the most common.
2) Inadvertently pushing down on the schrader valve (service valve ports on the compressor) when the system is full.
3) The vehicle gets in an accident and damages something like the front condenser.
4) The vehicle goes to the salvage yard, years ago this is more common, and the salvage yard starting taking apart the car
and they simply let the refrigerant gas escape into the air; can't do that anymore.
5) Someone who does not care about other people or the earth does something dumb, like venting off the refrigerant into the
air and knowing its dumb.

The EPA has regulations. Some are to protect you. Some you just got to wonder. And some they change their mind depending upon
the political climate. What can I say. The EPA is governed by people, and..... "people will be people will be people".