point, what is the percentage of man made c02 releases

[link|http://volcanoes.usgs.gov/Hazards/What/VolGas/volgas.html|USGS]:

Volcanoes release more than 130 million tonnes of CO2 into the atmosphere every year.

[link|http://www.eia.doe.gov/oiaf/1605/ggccebro/chapter1.html|EIA]:
[image|http://www.eia.doe.gov/oiaf/1605/ggccebro/images/New%20Fig%201.gif|0|Graph of Man-made CO2 emissions and atmospheric concentration|262|411]

It looks like your numbers are off a little bit. It looks to me like we've been putting more than 130 million tonnes a year of CO2 into the atmosphere since about 1860. It's presently about 6.1 B tonnes per year (or volcanoes are about 2.1% of the anthropogenic CO2).

The next figure shows the circulation of carbon in the atmosphere, in B tonnes per year:
[image|http://www.eia.doe.gov/oiaf/1605/ggccebro/images/NewFlowFig2.gif|0|Carbon cycle in B tonnes/year|351|603]

The 6.1 B tonnes we add every year is a small percentage of the total available carbon. But note that the blue arrows are nearly in balance while the red (human activity) arrows are forcing things in a particular direction. Termites can knock over a redwood if they're persistent enough...

[edit:] A more detailed graph of the carbon cycle is [link|http://www.vitalgraphics.net/graphic.cfm?filename=climate2/large/11.jpg|here] (135 kB image). It doesn't include volcanoes (if they're really 130 MT/yr, they are too small a contribution to show up).

Cheers,
Scott.

Post #259,010 by boxley 6/14/06 11:22:17 PM Reply	point, what is the percentage of man made c02 releases VS colcanic activity in the last 100 years, under .002% thanx, bill Any opinions expressed by me are mine alone, posted from my home computer, on my own time as a free american and do not reflect the opinions of any person or company that I have had professional relations with in the past 50 years. meep
Post #259,019 by Another Scott 6/15/06 12:04:57 AM 6/15/06 12:16:43 AM Reply	Let's see... 45 kB images. [link\|http://volcanoes.usgs.gov/Hazards/What/VolGas/volgas.html\|USGS]: Volcanoes release more than 130 million tonnes of CO2 into the atmosphere every year. [link\|http://www.eia.doe.gov/oiaf/1605/ggccebro/chapter1.html\|EIA]: [image\|http://www.eia.doe.gov/oiaf/1605/ggccebro/images/New%20Fig%201.gif\|0\|Graph of Man-made CO2 emissions and atmospheric concentration\|262\|411] It looks like your numbers are off a little bit. It looks to me like we've been putting more than 130 million tonnes a year of CO2 into the atmosphere since about 1860. It's presently about 6.1 B tonnes per year (or volcanoes are about 2.1% of the anthropogenic CO2). The next figure shows the circulation of carbon in the atmosphere, in B tonnes per year: [image\|http://www.eia.doe.gov/oiaf/1605/ggccebro/images/NewFlowFig2.gif\|0\|Carbon cycle in B tonnes/year\|351\|603] The 6.1 B tonnes we add every year is a small percentage of the total available carbon. But note that the blue arrows are nearly in balance while the red (human activity) arrows are forcing things in a particular direction. Termites can knock over a redwood if they're persistent enough... [edit:] A more detailed graph of the carbon cycle is [link\|http://www.vitalgraphics.net/graphic.cfm?filename=climate2/large/11.jpg\|here] (135 kB image). It doesn't include volcanoes (if they're really 130 MT/yr, they are too small a contribution to show up). Cheers, Scott. Edited by Another Scott June 15, 2006, 12:16:43 AM EDT Expand All History
Post #259,028 by boxley 6/15/06 8:52:16 AM Reply	Mount st Helens was 02.% ? Any opinions expressed by me are mine alone, posted from my home computer, on my own time as a free american and do not reflect the opinions of any person or company that I have had professional relations with in the past 50 years. meep

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