There are some interesting things about CO2 that are already known and yet to be discovered I feel. (all references C/O wiki) For example: "Hypercapnia or hypercapnea (from the Greek hyper = "above" or "too much" and kapnos = "smoke"), also known as hypercarbia, is a condition of abnormally elevated carbon dioxide (CO2) levels in the blood. Carbon dioxide is a gaseous product of the body's metabolism and is normally expelled through the lungs. Hypercapnia normally triggers a reflex which increases breathing and access to oxygen, such as arousal and turning the head during sleep. A failure of this reflex can be fatal, as in sudden infant death syndrome."... You will notice the reference to SIDS, being a failure of a specific reflex, yet causation of this failure is apparently unknown. You will also notice that this "failure of reflex" factor is not widely published. and was, IMO with out much doubt, well known by the medical scientists in the early 80's and deliberately kept under wraps. Blood CO2 testing is easy to preform as part of a typical blood test procedure, so they MUST have known that SIDS infants (80's) had severe elevated blood CO2. ***But one can not avoid the almost direct link between SIDS and CO2*** Hypothesis: It also IMO explains the sudden development of the Quit smoking campaign in the 80's which was claimed to be focused on the reduction of Lung disease when in fact it probably was more focused on reducing the Carbon monoxide, oxygen blocking that smoking creates. thus reducing the risk of Hypercapnia [excessive blood CO2 levels] ============== Also, "Dry ice, sometimes referred to as "cardice" (chiefly British chemists), is the solid form of carbon dioxide. It is used primarily as a cooling agent. Its advantages include lower temperature than that of water ice and not leaving any residue (other than incidental frost from moisture in the atmosphere). It is useful for preserving frozen foods, ice cream, etc., where mechanical cooling is unavailable. Dry ice sublimes at −78.5 °C (−109.3 °F) at Earth atmospheric pressures. This extreme cold makes the solid dangerous to handle without protection due to burns caused by freezing (frostbite). While generally not very toxic, the outgassing from it can cause hypercapnia due to buildup in confined locations." So in a sense CO2 could be considered as a natural refrigerant. "Dry ice is easily manufactured. First, gases with a high concentration of carbon dioxide are produced. Such gases can be a byproduct of another process, such as producing ammonia from nitrogen and natural gas, or large-scale fermentation. Second, the carbon dioxide-rich gas is pressurized and refrigerated until it liquifies. Next, the pressure is reduced. When this occurs some liquid carbon dioxide vaporizes, causing a rapid lowering of temperature of the remaining liquid. As a result, the extreme cold causes the liquid to solidify into a snow-like consistency. Finally, the snow-like solid carbon dioxide is compressed into either small pellets or larger blocks of dry ice" What I am exploring at the moment is that the atmospheric CO2 may demonstrate some of it's extraordinary cooling properties in the near future... as pressure differentials become more extreme in the worlds atmosphere. We presume we know most of all there is to know about CO2 but have yet to explore such a massive and dynamic environment as a global atmosphere/eco-system that is constantly seeking equilibrium. Gosh is that my super ego showing again?? Please Register or Log in to view the hidden image!