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| Dave91 |
 Posted: Thu Mar 22, 2007 11:13 am Post subject: Amount of CO2 exhaled contributing to climate change??? |
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Forum Freshman
Joined: 22 Mar 2007
Posts: 6
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Just been doing some maths, and I reckon people on the planet exhale somewhere in the realm of 1,401,600,000 tonnes per year of carbon dioxide per year. Here's how I came to that figure:
0.037 g exhaled per breath
12 breaths/min
0.037 x 12 x 60 =
26.6 g/hour/person
Presuming there are 6,000,000,000 people this means there is:
160000000000g per hour
=160000000 kg per hour
=160000 tonnes per hour
160000 x 24 x 365 =
1,401,600,000 tonnes per year
Have I gone horribly wrong? To what extent does the CO2 we exhale contribute to climate change? If this is right, we are exhaling 58 times as much CO2 as we are generating through other man-made means. Am I missing something?
Dave |
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| Guest |
| Posted: Thu Mar 22, 2007 11:32 am Post subject: |
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That's about the same as 1 million average cars, there are probably at least a billion cars in the world.
But don't worry CO2 is not the primary cause of Global warming, infact it's not even in the top 10... |
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| Jellybird |
| Posted: Thu Mar 29, 2007 5:06 am Post subject: |
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Forum Freshman
Joined: 06 Feb 2007
Posts: 64
Location: United Kingdom
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| But we've always been breathing out CO2 so why is it making a difference now? |
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| Dave91 |
| Posted: Fri Mar 30, 2007 5:49 am Post subject: |
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Forum Freshman
Joined: 22 Mar 2007
Posts: 6
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Presuming it is making a difference, it would be having an effect now because the amount of people on the planet is higher than it ever has been before. The population has absolutely shot up in the last century.
Dave |
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| Jellyologist |
| Posted: Fri Mar 30, 2007 7:50 am Post subject: |
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Forum Senior
Joined: 12 Jan 2007
Posts: 330
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The amount is zilch in the scheme of things. Like a mosquito playing chicken with your windshield.
It's a good indication, however, how 'big' numbers are suppose to be meaningful when they often aren't. We hear in the media about tons of this and tons of that. All meaningless without some perspective and relevant comparision. They 'may' be meaningful but why?
I was at a conference once and a speaker purposely left a power of 10 off a figure out of an equation and thus reduced the whole size of the universe by 10 times. No one at the conference of scientists noticed. His purpose, as pointed out later, was to warn against reading too much into numbers as humans can't relate to large numbers outside of our immediate experience.
The same with percentages without perspective. 'Murders are up 100% in the last year'. Well, if it's a big city and there was one murder the previous year and two the next that's 100% increase. If it had 100 murders the previous year and 95 the next, that's a 5% reduction. Want to live in a city with murder rates 'soaring' 100% a year or being reduced 5% ? |
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| Dave91 |
| Posted: Fri Mar 30, 2007 1:03 pm Post subject: |
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Forum Freshman
Joined: 22 Mar 2007
Posts: 6
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Just out of curiosity, could someone please provide figures as to how much carbon dioxide is being emitted in total? The only figures I can find are on Wikipedia, and if they are right, which knowing Wikipedia they almost certainly aren't, my figure puts carbon dioxide emissions from human exhalation somewhere between Russia and India.
Dave |
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| Nevyn |
| Posted: Fri Mar 30, 2007 1:06 pm Post subject: |
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Forum Ph.D.
Joined: 21 Jan 2007
Posts: 827
Location: UK
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| Dave91 wrote: |
Just out of curiosity, could someone please provide figures as to how much carbon dioxide is being emitted in total? The only figures I can find are on Wikipedia, and if they are right, which knowing Wikipedia they almost certainly aren't, my figure puts carbon dioxide emissions from human exhalation somewhere between Russia and India.
Dave |
I don't get it  , how can i figure be between two countries?
_________________
Come see some of my art work at http://nevyn-pendragon.deviantart.com/ |
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| Dave91 |
| Posted: Sat Mar 31, 2007 10:01 am Post subject: |
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Forum Freshman
Joined: 22 Mar 2007
Posts: 6
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It would put my figure for emissions from exhaling between the man-made emissions of Russia and India.
Dave |
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| Cat1981(England) |
| Posted: Sun Apr 01, 2007 6:18 am Post subject: |
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Forum Ph.D.
Joined: 09 Sep 2006
Posts: 826
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No, it doesn't add anything that wasn't there before. All that CO2 is already inside our eco-system. I think the figure for mans co2 emissions is about 7/8 billion tons per year, im not sure if that includes breathing.
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You may be an idiot, but that doesn't mean you need to act like one. My art teacher. |
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| Everlasting |
| Posted: Wed Apr 04, 2007 10:06 am Post subject: Co2 Emissions |
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Forum Freshman
Joined: 12 Mar 2007
Posts: 93
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Just for the record:
The evidence states that due to the destruction of the ozone
layer, increased Co2 is escaping, and the sun is producing greater
heat; causing the global climate change.:
SPACE.com -- Global Warming on Pluto Puzzles ScientistsPluto's
atmospheric pressure has tripled over the past 14 years,
indicating a stark temperature rise, the researchers said.
Mars Melt Hints at Solar, Not Human, Cause for Warming,
Scientist SaysSimultaneous warming on Earth and Mars
suggests that our planet's recent ... that the current
global warming on Earth is being caused by changes in the sun.
Sun Responsible for Global WarmingTwo new reports cast
doubt on the manmade global warming theory and instead point
to another cause for the recent warming of Earth changes in the sun.
Cause for Global Warming/Hole in Ozone LayerIncreasing
the amount of C02 in the atmosphere will increase the amount
of reflected energy capture and lead to a temperature increase.
Other planets are being affected by the earth's global warming, and
this event could be attributed to other anomolies in space.
Everlasting
Futuristic Science Fiction Novel
Moon Over Key Biscayne
booksandmore.4t.com |
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| Guest |
| Posted: Wed Apr 04, 2007 10:19 am Post subject: |
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| Would you like to add some links to these articles? - I'm sure they will be avidly read... |
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| Cat1981(England) |
| Posted: Thu Apr 05, 2007 5:08 pm Post subject: |
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Forum Ph.D.
Joined: 09 Sep 2006
Posts: 826
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No, what those people have not told you is that Mars is now cooler than it was in the 70's when measurements were made with the viking landers, even though the temperature on earth has gone up in the same time. Temp rises on mars have only been seen over the last 3 years in the southern hemisphere. As for pluto, the temps probable have gone up (although i have no idea how they made the measurements) but it has to be taken into account that pluto has very eccentric orbit around the sun.
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The evidence states that due to the destruction of the ozone
layer, increased Co2 is escaping |
I'm not sure what this is about, if you wouldn't mind rephrasing it, it would be greatly appreciated.
_________________
You may be an idiot, but that doesn't mean you need to act like one. My art teacher. |
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| M |
| Posted: Sat Apr 07, 2007 6:45 pm Post subject: |
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Forum Junior
Joined: 26 Sep 2006
Posts: 274
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Huh?? Am I missing something here? Since when does human breathing increase the CO2 content of air? We exhale what we inhale. At least that's what I do. I don't know about you guys.  |
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| Dave91 |
| Posted: Sun Apr 08, 2007 12:43 am Post subject: |
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Forum Freshman
Joined: 22 Mar 2007
Posts: 6
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| Correct, but in the case of CO2, we exhale far more than we inhale. Respiration and all that. |
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| zephyrus17 |
| Posted: Sun Apr 08, 2007 7:29 pm Post subject: |
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Forum Freshman
Joined: 06 Jan 2007
Posts: 15
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Nay, Dave91, you forgot about lovely trees.  |
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