Of these, water vapor (H 2 O), carbon dioxide (CO 2 ), methane (CH 4 ), and nitrous oxide (N 2 O) are naturally occurring Perfluorocarbons (CF 6, C
Of these, water vapor (H 2 O), carbon dioxide (CO 2 ), methane (CH 4 ), and nitrous oxide (N 2 O) are naturally occurring Perfluorocarbons (CF 6, C