New laws in air conditioning rarely make the front page news, but since the early 1990s, there have been a number of new mandates rolled out to reduce the negative effects that greenhouse gases and refrigerant have had from an environmental standpoint. As mandates continue, there is one in specific of which you should be aware: the full phase-out of Freon, also known as R-22. Significant rollbacks have already occurred. For instance, if you have an air conditioning system that uses Freon, you may have been made aware that R-22 is only manufactured to repair existing ACs; in other words, air conditioners can no longer be produced with R-22. The result has been that Freon recharges for systems that have a refrigerant leak will be far more expensive than they were previously because of the limited amount of Freon being made. So the question is: is it worth it to keep your Freon-based air conditioning system in Pittsburgh, PA?