PeterG wrote:It makes no difference in determining whether or not Emanuel was right about the effect of CO2.
I think this would point away from the Asshenius statement of "heavily" regulated by just one gas. The difference in h2o and co2 is co2 stays transparent at the varying levels we are talking about. Water, condenses in the atmosphere as the percentage goes up, creating clouds, reflecting light and creating a self regulating affect.PeterG wrote:The Swedish chemist, Svante Arrhenius, found out that the climate is heavily regulated by one of the greenhouse gases, carbon dioxide, whose mass represents four ten-thousands of our atmosphere--a tiny trace.
I also think we have learned a lot since Asshenius made his initial observations and we would know a lot more now.
No, but I have heard other reputable climatologist mention it. I suspect, if asked, Christy would speak about this. The reality is ANY gas in the atmosphere has an absorption rate of light. No light magically passes through gasses without interacting. Light even interacts with glass, just a very low absorption rate. The only thing that does not interact with light is a vacuum. Light is also affected by gravity. Light is just a form or radiation energy that travels through a vacuum. Any time a proton of light hits any matter, it will slow, thus changing from light to another waveform of energy. Most slower forms move towards the inferred spectrum which creates heat. A gas is just molecules spaced widely and light will often pass through without hitting an atom. When it does, it stays as light. When it hits something, in the air or on the surface of the planet, it turns to heat. I heavy atmosphere will slow the heat radiation. A light atmosphere, even if 100% co2, will allow for more heat radiation back into space. The heat has to go out without running into obstacles too. The more the obstacles, the slower it radiates back out, even in the lower waveforms.Bootstrap wrote:Did either Christy or Emanuel mention this?
This is why cloud cover affects the greenhouse effect much more than other factors. The high clouds, reflect the light and heat radiation back out through much less atmosphere. This is why, during the Jurassic and other high ambient temperature times, the earth did not have run away greenhouse, but had much more h2o in the atmosphere, which created a lot more rain, which created a lot more life, which used up a lot more co2. This is why Christy and other climatologists(and there are multiple) who do not see a crisis of climate. Watchful, but not in crisis mode. I think that is wise.