Water Vapor: Rules the Greenhouse System (95%?)

[7redorbs]

Water vapor constitutes Earth's most significant greenhouse gas, accounting for about 95% of Earth's greenhouse effect (5). Interestingly, many "facts and figures' regarding global warming completely ignore the powerful effects of water vapor in the greenhouse system, carelessly (perhaps, deliberately) overstating human impacts as much as 20-fold.

Water vapor is 99.999% of natural origin. Other atmospheric greenhouse gases, carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and miscellaneous other gases (CFC's, etc.), are also mostly of natural origin (except for the latter, which is mostly anthropogenic).

5) References to 95% contribution of water vapor:

a. S.M. Freidenreich and V. Ramaswamy, “Solar Radiation Absorption by Carbon Dioxide, Overlap with Water, and a Parameterization for General Circulation Models,” Journal of Geophysical Research 98 (1993):7255-7264

Global Warming: A closer look at the numbers

[Mr X]

This is why concentrating on man made CO2 (the link to warming is still not proved) is such a waste of time and money. It's like telling an Amazonian native to stop pissing in the Amazon because he's responsible for it flooding.