Read The Pause in the Stratosphere by Steven Capozzola – an interesting mechanism to explain the much vilified temperature pause in the troposphere. RSS temperature timeseries show what Steven Capozzola is talking about.
The TLT trend shows the temperature pause in the lower troposphere with crystal clarity. While the TLS trend shows the cooling trend halted from ~late 1990’s onwards.
This chart from report 56 at this WMO page shows how global stratospheric ozone levels have bounced since the 1990’s.