Quote:
Originally Posted by simmo
Something else what I don't understand is we bang on about the greenhouse gases warming the planet but at what percentage of oxygen do we need to exist? Has anybody been checking how much oxygen is left in the atmosphere and are we using it up quicker than it is being replaced with so much forest now gone?
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Fill yer boots at Skeptical Science:
Climate Change Cluedo
The oxygen quantity is dropping, as expected (it shows the CO2 increase is from combustion, not volcanic outgassing). The 'source' link has lots of primary references if you want. But the oxygen decrease is small in absolute terms, so suffocation is certainly not on the cards!
