(man-made and natural) as a % of Relative
Contribution to the "Greenhouse Effect"
|Based on concentrations (ppb) adjusted for heat retention characteristics||Percent of Total||Percent of Total --adjusted for water vapor|
|Carbon Dioxide (CO2)||72.369%||3.618%|
|Nitrous oxide (N2O)||19.000%||0.950%|
|CFC's (and other misc. gases)||1.432%||0.072%|
95% of the greenhouse effect is due to natural water vapor! All CO2 whether man made or natural (the huge majority) is only %3.6.