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"Murphy was an optimist!"

Need O2 May 18, 2006 7:58 am

Posted by Doug McCaughan in : Daily Life, Health
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I’m drained. I feel like I need some oxygen! But maybe the O2 experience is all hype.

A little known fact about our planet is that about 300 years ago the Earth’s atmosphere had an oxygen content of 30-32%. since then because of industry, rain forest destruction, & several other factors our planet’s Oxygen has dropped considerably, down to between 19-21%.

[Source] Wikipedia on oxygen.

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