At the risk of sounding redundant, but... source?
Also, the Ozone Layer has been healing for years ever since the ban on CFC's in 1996. The hole in the Ozone Layer has nothing to do with climate change. The Ozone Layer protects against UV radiation from the sun. UV radiation is what causes skin to age prematurely and causes skin cancer.
Climate Change is caused by Green House Gases, mostly CO2, which traps radiant heat on the Earth. The Sun heats the ground, the ground radiates that heat, and the excess CO2 in the air retains the heat like a blanket.