This table shows how the rise in atmospheric CO2 has accelerated since the 1960s.

Average CO2 rise
(ppm per year)

1960s        0.86
1970s        1.22
1980s        1.58
1990s        1.55
2000s        1.91
2010s        2.41

(Source: Met Office)

In addition, a milestone has now been passed in that CO2 levels are now 50% higher than at the start of the Industrial Revolution. The current measurements are taken at the Mauna Loa observatory and historical measurements, the ones relating to the start of the Industrial Revolution, are gleaned from studying ice cores.