If one does a little research, one will find that all the "data" supporting a dramatic increase in CO2 emissions comes from a NOAA research station on the slopes of Mauna Loa on the Island of Hawaii.
If you do a little more research, you will see the station is a few miles away from an active volcano that has been steadily erupting for the past 23 years.
If you do a little more research, you will discover that the primary gas released in a volcanic eruption is CO2.
A good point. What is the global mean CO2 concentration and how is it obtained?