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Depletion
The Decline of Atmospheric free Oxygen
Since we have begun to measure in 1989, there has been a steady decline of free oxygen in our atmosphere. And while this is nothing more than expected, since every molecule of additional carbon dioxide locks up two oxygen atoms, the free oxygen decline is greater than the carbon dioxide lock-up.
The greater than expected overall free oxygen decline is proof that the Earth's photosynthetic capacity has declined. And since there has been no measurable decline in plankton, and consequently, in marine photosynthesis, as long expected and measured due to the increase of hard UVB radiation at surface level, the decline points straight at the only other source of free oxygen - the forests and green cover of the continents.
Originally posted by Apex Predator
I think most "average" people's willingness to resist a "green society" is that they are put off by the holier than thou attitudes put forth by some "green warriors." I know not every environmental proponent is like that but those that are "crazy" are the ones who get the airtime because crazy sells ad space...lol
Originally posted by Apex Predator
[
I think the main problem with global warming and oxygen depletion is that too many people focus on the problem and not the solution.
Sea
[WASHINGTON—Low-oxygen zones where sea life is threatened or cannot survive are growing as the oceans are heated by global warming, a new study warns. Oxygen-depleted zones in the central and eastern equatorial Atlantic and equatorial Pacific oceans appear to have expanded over the last 50 years, researchers report in Friday's edition of the journal Science.
originally posted by ApexPredator
When the logging and building industry talk about lumber being a renewable resource and it's the greenest way to build a home people are duped into buying that line. Personally I think that a renewable resource in the real estate industry is a brick home that can be passed to future generations vice a cheapo tract home that will be easily damaged or destroyed in a hurricane or tornado.
Air is only part oxygen..
Humans will adapt to living on less volume as the environment dictates. Much in the same way humans do not need permanent gravity to survive.
Let face it, we are a pretty adaptable species, and there will be alternatives to what we breath (natural or artificial)
Originally posted by SpeakerofTruth
The Decline of Atmospheric free Oxygen
(Not going to paste the whole article)
Originally posted by SpeakerofTruth
Actually, gravity is the mysterious force which holds atoms and molecules together, so, yes, we need gravity.
Originally posted by Long Lance
well, O2 is ~ 21% of the atmoshpere.
CO2 is ~0,0004% ie. ~400ppm
so, the salient question is how much does O2 content change and where are the limits for breathing.... (which are of course closer to 10%). it would litterally take aeons to significantly reduce O2 content by any appreciable amount.
Oxygen is constantly leaking out of Earth's atmosphere and into space. Now, ESA's formation-flying quartet of satellites, Cluster, has discovered the physical mechanism that is driving the escape. It turns out that the Earth's own magnetic field is accelerating the oxygen away.