system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
What are the most abundant greenhouse gases in Earth's atmosphere


assistant
The most abundant greenhouse gases in Earth's atmosphere, listed in decreasing order:

Water vapor
Carbon dioxide
Methane
Nitrous oxide
Ozone
Chlorofluorocarbons
Hydrofluorocarbons
Perfluorocarbons