@parados,
parados wrote:Stop and reread that statement you made Herald. Really read it. Then you can ask yourself why you think the atmosphere is a biosphere.
Where did you see that claim: that 'the atmosphere is a biosphere'? You are the one actually claiming that, for you claim that the biosphere and the atmosphere are closed systems, and the CO2 circulates only in the atmosphere.
The biosphere is open system because most of the its energy (for the photosynthesis of the plants for example) comes from the Sun (which is neither part of the biosphere, nor of the atmosphere); the biosphere is open system because species become continuously extinct irretrivably - you will hardly soon revive to live the mammoth, for example. Since 1900 about 400 species of Vertebrata have left the system. It acquires energy from the outer space, and sends continuously its members with a one-way ticket to the 'afterlife' - where do you see
closed system here.
The atmosphere is also not a closed system. It also receives its energy (for the water cycle for example) from outside (Sun, Volcanos, gas and heat-exchange with the biosphere, etc.). The CO2 of the atmosphere is recycled through the land forest, through the ocean plankton, and through some chemical reactions (rock formation; increasing of the acidity of the ocean, etc.). The biosphere is not part of the atmosphere, so the atmosphere is not a closed system. Obviously you have totally messy representation and understanding of the world.
Forget for a moment about the black box modelling of closed/open system, and take a look at the Keeling curve. Just place a ruler on the diagram to see whether it is exponent or not, and to where it is going. This is empirical data and you cannot deny them. No matter what your special theory of the closed systems may be, the CO2 in the atmosphere is increasing along an exponent ... which is going to infinity. It is logical - you have no idea of how to stop the increase, and there is nothing on the event horizon that will stop it ... unless we do something on the issue to return most of the carbon back to the earth where it has been, before the fossil fuel apologists started exploiting it with their fresh ideas of burning carbon to infinity and wasting energy resources of any kind.