CO2 is the only culprit?

This one says Ozone layer is recovering: http://research.noaa.gov/News/NewsArchive/LatestNews/TabId/6...

This one says increased CO2 has helped the speedy recovery of Ozone: http://classroom.synonym.com/co2-deplete-ozone-layer-4828.ht...

I understand the topic is climate change. Probably there are other factors contributing to it. Its been said Methane and NOx are more potent. Is there an increase in those emissions? We are only looking at CO2 it seems.