Global carbon dioxide emissions declined by 6.4 percent in the first year of the pandemic, but they rebounded to reach pre-pandemic levels in 2021. (PDF). This indicates that the drastic emissions reductions required to keep global warming below 1.5°C are unlikely.
We squandered a year of climate talks. The COP26 meeting took place, and progress was achieved in many areas, although the shift to internet negotiations harmed poorer countries.