The ultimate objective of the UNFCCC is to stop the rise of CO2 and other greenhouse gases in the atmosphere before they get to levels that are dangerous for the global climate.  How is that going?  Three decades of results are summed up in the "COP Curve" shown below.  

 Credits: CO2.Earth adapted the "COP Curve" chart from a carboncredits.com graphic. 

COP refers to the Conference of the Parties to the United Nations Framework Convention on Climate Change.  These are the national goverments that ratified the UNFCCC, including the atmosphere stabilization objective in UNFCCC Article 2. 

The Keeling Curve is the plot of high precision CO2 measurements in the air since March 1958 at the Mauna Loa Observatory in Hawaii, 3400 metres above sea level.  The Keeling Curve shows "what is" happening with atmospheric CO2 levels.  Here, the COP Curve shows "what is not happening" to stop the rise of CO2 levels.