NASA has conducted a study on ozone depletion, and found that HFC (Hydrofluorocarbons) used in airconditioning in homes, cars, refrigerators, etc. have a negative impact on Earth’s ozone layer.
The ozone layer, which is measured in Dobson units is around 300 units, or 3 mm thick. However, these HFCs continue to break down the ozone layer, albeit slower than the coolants they have replaced.
As they are released into the atmosphere, HFCs cause warming, which in turn destroys ozone molecules.
