<Sitting in a sealed room makes a bigger difference. << In this case other emissions may turn out to be more hazardous. >
Yes, I have heard that people sometimes leave their gas heaters burning and they can be overcome by fumes. Sometimes people leave unlit gas running in error. If there's an ignition source, then "BANG!". Suppose somebody comes home, notices a smell and turns on a light to see, there might be a spark and bang. Or suppose they are smoking.
We civilized people of the far east know not to emit any bodily vapours in confined spaces, but maybe you meant that, because I hear that some European homovapiens emit toxic and foul odours from various physiological functions. In a confined space, that would be fatal to synaptic mediators. Perhaps that's why Germany was so keen for more lebensraum history1900s.about.com They don't mention pong there, but sometimes the real reason for human activity is disguised. For example, the USA is gung-ho for Iraq because they want freedom for Iraqis. Which begs the questions; why the billions of others who haven't enjoyed freedom are left by the wayside and why did the USA support Saddam for so long? Maybe the Germans couldn't stand their own smell.
<Note: CO - together with NO (remember nitroglicerin for heart patients?) - is one of the most important synaptic mediators. > Maybe CO is why people smoke. Upsetting synaptic mediators seems very popular in drug culture. Maybe it's not synaptic mediators in particular, but anything which disrupts normal programming seems to be considered a good idea in drug culture.
So seriously, CO2 would cut the amount of breathing a cigarette smoker could do and therefore cut the amount of smoking they could do, but without upsetting their synaptic mediators. But more seriously still, at 300 ppm CO2, we aren't really having any significant effect on breathing ability in smokers or non-smokers. Even at 500 ppm, which is quite a long way away, and plants will not be overjoyed even at that level, though they'd be happier, breathing won't be a problem.
It'll be surprising if we can raise C02 to 500 ppm. Filling a leaky bucket gets more difficult the fuller it gets as the water pressure increases the outflow rate. As CO2 increases, the rate of absorption into the ocean and plants will increase and equilibrium will be established.
Mqurice |
