Most countries have stopped industries using these in aerosols, but they are still used in other products. It is especially bad in the Southern Hemisphere. Of the three major atmospheric problems, ozone depletion is the closest to being solved. We must get the new technologies to them. The second problem, acid rain , is still killing lakes and forests, often outside the countries, which produce the gas.
More cooperation is needed.
With regards to global warming we still have a long way to go. We are not exactly sure what is happening. Finding alternative fuels and using energy more efficiently is part of the solution and a major step was taken at Rio with the Law on limit Change. This forces governments to keep their countries greenhouse gas production at 1990 levels. That s how our world could be in a few decades in the grip of the greenhouse effect.