Climate Change and the Water Vapor Effect - Part 1

Here's the link to Part 2 of 2:
http://www.youtube.com/watch?v=ePLw6DyTYmI

Water vapor accounts for more than 95% of the greenhouse gas.

"When looking at water vapor, the amount humans have added to the atmosphere today is the sum of the past few weeks (at MOST), since water has its own equilibrium and just rains out."
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I agree that the water vapor will rain out, but we are adding the water vapor in a daily process, making the land areas artificially more humid (every day) than they would have been. This man made humidity reduces the heat that is radiated back into space.

Seventy percent of the earth is covered with water. Let's look at a "Water World" type earth with no land. The humidity created by being 100% ocean would cause the planet's temperature to increase (and the added water "just rains out"). We would have very small daily temperature swings, at any location and I doubt that we would even have ice caps at the poles.

What if the earth was 100% land with no open water? The result would be a planet with no humidity, with big daily temperature swings, but with the net effect of having a much colder planet.

The effect of our forcing water into the atmosphere is similar to changing the surface water from 70% to say 72%. It will have and effect on the earths temperature. CO2 is not a factor in these examples and it's not a major factor in global warming.
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During the Cretaceous Period the earth was about 80% covered with water and tropical sea surface temperatures may have briefly been as warm as 42 °C (107 °F), 17 °C (31 °F) warmer than at present and deep ocean temperatures were as much as 15 to 20 °C (27 to 36 °F) higher than today's. (Per Wikipedia)

http://en.wikipedia.org/wiki/Cretaceous

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"CO2 levels are usually invoked to explain Cretaceous warmth and the flat Cretaceous temperature gradient. This makes sense, since the very active mid-ocean spreading ridges might well have been associated with out-gassing of CO2 from deep within the Earth. Unfortunately, the geology of the period and stable carbon isotope records, don't really support the idea as well as they might."

"Even the most sophisticated quantitative models can't reconstruct the flatness of the Cretaceous temperature gradient. Either our temperature estimates are off, or some important factor is missing from the models. Since dinosaurs and semi-tropical vegetation are known from within 10° of the Cretaceous poles, the problem is likely to be with the theory."

http://www.palaeos.com/Mesozoic/Mesozoic.htm

Take a look at the temperature vs latitude chart. With the earth being covered 80% with water, the "Water World" type moisture effect was coming into play. IMHO

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