500
Water vapor, carbon dioxide, methane, nitrous oxide, and ozone.
What are the primary greenhouse gases in Earth's atmosphere?
NOTE: nitrogen, oxygen, and argon are not greenhouse gases because they are unaffected by solar radiation. Water vapor has the strongest effect on trapping solar radiation (35-75%) but an atmospheric lifetime of 9 days.
Carbon dioxide effect (10-25%) lifetime 100+ years
Methane effect (5-10%) lifetime 12-15 years