Because the federal government is about to force you to stop using it. I wonder how many asthma patients will wind up in the emergency room do to problems with an unfamiliar inhaler?

Old-fashioned asthma inhalers that contain environment-harming chemicals will no longer be sold at year’s end — and the government is urging patients not to wait until the last minute to switch to newer alternatives.
[…]
Chemicals called chlorofluorocarbons, or CFCs, once were widely used to propel the drug into the lungs. But CFC-containing consumer products are being phased out because CFCs damage the Earth’s protective ozone layer. As of Dec. 31, asthma inhalers with CFCs can no longer be made or sold in the U.S. Inhalers instead will be powered by ozone-friendly HFAs, or hydrofluoroalkanes.
[…]
The FDA warns that patients will face a learning curve: HFA inhalers may taste and feel different. The spray may feel softer. Each must be primed and cleaned in a specific way to prevent clogs. And they tend to cost more.

And thus it begins, our lives impacted over a theory that has yet to be proven (that we can impact the climate in anyway).Does anyone really believe that this will make a difference?