[troutman]

Originally Posted by snootchiebootchies

Government solution has proven to work in the past. When I was growing up, acid rain was seen as the most pressing environmental issue. Legislation like the Clean Air Act, cap and trade programs, and imposing stronger emission standards on the industrial and transportation sectors have made the problem so much more manageable that acid rain is hardly a topic people talk about anymore. Government has to lead the way and provide the appropriate market incentives for this problem to be solved.

It was not capitalism, but inter-governmental action informed by science that is resolving the ozone layer problem:

In 1978, the United States, Canada and Norway enacted bans on CFC-containing aerosol sprays that damage the ozone layer. The European Community rejected an analogous proposal to do the same. In the U.S., chlorofluorocarbons continued to be used in other applications, such as refrigeration and industrial cleaning, until after the discovery of the Antarctic ozone hole in 1985. After negotiation of an international treaty (the Montreal Protocol), CFC production was capped at 1986 levels with commitments to long-term reductions.[16] This allowed for a ten-year phase-in for developing countries[17] (identified in Article 5 of the protocol). Since that time, the treaty was amended to ban CFC production after 1995 in the developed countries, and later in developing countries.[18] Today, all of the world's 197 countries have signed the treaty. Beginning January 1, 1996, only recycled and stockpiled CFCs were available for use in developed countries like the US. This production phaseout was possible because of efforts to ensure that there would be substitute chemicals and technologies for all ODS uses.[19]

On August 2, 2003, scientists announced that the global depletion of the ozone layer may be slowing down because of the international regulation of ozone-depleting substances. In a study organized by the American Geophysical Union, three satellites and three ground stations confirmed that the upper-atmosphere ozone-depletion rate slowed down significantly during the previous decade. Some breakdown can be expected to continue because of ODSs used by nations which have not banned them, and because of gases which are already in the stratosphere. Some ODSs, including CFCs, have very long atmospheric lifetimes, ranging from 50 to over 100 years. It has been estimated that the ozone layer will recover to 1980 levels near the middle of the 21st century.[12] A gradual trend toward "healing" was reported in 2016.[20]

https://en.wikipedia.org/wiki/Ozone_layer#Depletion