Conversation so far:
what is the approximate atmospheric life of co2
The lifetime in the air of CO2, the most significant greenhouse gas, is the most difficult to determine, because there are several processes that remove carbon dioxide from the atmosphere.
what is the most common process in which carbon dioxide is removed from the atmosphere
Between 65% and 80% of CO2 released into the air dissolves into the ocean over a period of 20–200 years.
how long do other processes in which carbon dioxide is removed from the atmosphere besides dissolving into the ocean take
Carbon dioxide is removed by slower processes that take up to several hundreds of thousands of years, including chemical weathering and rock formation.
what are other greenhouse gasses besides carbon dioxide
Aside from water vapour, the four principal greenhouse gases are carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O) and the halocarbons or CFCs (gases containing fluorine, chlorine and bromine).

Question: which is the most potent
Self-contained rewrite: which is the most potent greenhouse gas