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Originally posted by WajomaAbsolutely, the increase in CO2 as a proportion of the total atmospheric volume is, indeed, 0.00026% (remember though that N2 makes up 78% and O2, 21% leaving a whopping 1% (93% of which is the inert neon) of the atmosphere for all those nasty atmospheric perturbations - also remember the fact that the mean surface temperature (+14C with convective heat redistribution, 72C without) would be -18C if it weren't for the CO2 in the atmosphere, i.e. CO2 has a disproportionatly large effect on global climate). However, the increase in the CO2 concentration was 0.687%.
The figure .00026% is correct. Nothing loony about it...of course it dosen't quiet sound alarmist enough though.
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Originally posted by Kevin McfarlandTrue,
Just my own 2 cents but volcnaos put out more co hc nox than huge cites of cars driving around. That is nature at work and not man. Could be wrong just some input on the subject.
but there would have to be a phenomenal increase in volcanic activity over the last 40 years to account for the increases in CO2, CH4 (which can't be explained by volcanoes) etc. Not sure of exact figures, but I'd say you'd probably require every volcano on earth to erupt every year to ellicit the changes.
So, in a word. No.
[edit; but "Welcome to the Forums" Kevin]
Just a bit more for you to worry about. Our sun is a G type variable. We have seen this exact type of star "erupt" to twice its normal size and put out ten times it's normal heat energy for a decade then settle back to it's normal routine.
How well would the earth handle such an eruption? As long as we are going to worry, let's do it right. Ok? LOL
Originally posted by StarValleyWyWell heck, if you want to worry about that kind of stuff, about 8 light years away there is this incredibly bright star called sirius, Its the kind of star that burns itself out rather quickly and goes nova. Its a kind of time bomb just waiting to go off. We don't want to be anywhere within a thousand light years of it and here we are, like the second or third closest star at 8 LY away. OMG, I lose SO much sleep.....
Just a bit more for you to worry about. Our sun is a G type variable. We have seen this exact type of star "erupt" to twice its normal size and put out ten times it's normal heat energy for a decade then settle back to it's normal routine.
How well would the earth handle such an eruption? As long as we are going to worry, let's do it right. Ok? LOL
Originally posted by sonhouseDon't worry if it went off tomorrow we'd have 8 years before we were even aware.
Well heck, if you want to worry about that kind of stuff, about 8 light years away there is this incredibly bright star called sirius, Its the kind of star that burns itself out rather quickly and goes nova. Its a kind of time bomb just waiting to go off. We don't want to be anywhere within a thousand light years of it and here we are, like the second or third closest star at 8 LY away. OMG, I lose SO much sleep.....
Of course it could have gone off 7 years and 364 days ago.
Originally posted by XanthosNZsupposing it was NZ facing Sirius ... the rest of us would have a chance to dig holes and add ventilators ... doubt that it would keep rotating as usual ...
It doesn't matter. We'd all die anyway.
unless the earth popped like a squashed orange ... that might be difficult ...
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Originally posted by zeeblebotNah, it'd probably vapourise the atmosphere and most of the ocean; hey, if we're lucky it'll just rip the planet to pieces.
supposing it was NZ facing Sirius ... the rest of us would have a chance to dig holes and add ventilators ... doubt that it would keep rotating as usual ...
unless the earth popped like a squashed orange ... that might be difficult ...