posted on Apr, 29 2008 @ 12:04 AM
"If the oxygen level in such an environment falls below 19.5% it is oxygen deficient, putting occupants of the confined space at risk of losing
consciousness and death." What happens if the world's atmospheric levels of oxygen fall to 19.5% or lower?
I’ve been thinking about this issue for some time and I know that if we are to survive the next “X” event could this be the undoing of us
How well will the nuclear shelters deal with this?
Hiding in a cave with supplies will not help either.
So what to do?
Where to hide?
How long before we have done this to ourselves without any catastrophe or outside influence.
What if massive earthquakes release trapped co2 and methane into the atmosphere?
Volcanoes erupt spewing forth sulphur and other toxic gasses.
NewScientist.com news service
The air we breathe is 21% oxygen, 79% nitrogen and minor amounts of other gases
Earth's atmosphere is approximately 78.1% nitrogen, 20.9% oxygen, .9% argon, .0367% carbon dioxide, and the balance is mostly water vapor.