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Humans Spew More Carbon Dioxide than All of Earth's Volcanoes
Yahoo ^ | 6/14/11 | Stephanie Pappas - LiveScience

Posted on 06/14/2011 1:33:54 PM PDT by NormsRevenge

Explosive volcanic eruptions might be attention grabbing, but a new review of research finds that their environmental impact pales in comparison to human activities. According to the research, humans put out the same amount of carbon dioxide in three to five days that all of the volcanoes on Earth put out in one year.

"Anthropogenic carbon dioxide emissions dwarf global volcanic carbon dioxide emissions," study researcher Terrance Gerlach, of the U.S. Geological Survey, said in a statement. Carbon dioxide, or CO2, is the main greenhouse gas responsible for climate change.

Gerlach crunched the carbon dioxide numbers from earlier studies of volcanic output, finding a range of 0.13 to 0.44 billion metric tons, or gigatons, of CO2 per year. In comparison, the estimated rate of human carbon dioxide emissions for 2010 alone is 35 billion metric tons.

For instance, here are a few carbon-emitting human activities and their carbon-dioxide outputs:

Land-use changes: 3.4 gigatons per year

Light-duty vehicles (mainly cars and pickup trucks): 3.0 gigatons per year

Cement production: 1.4 gigatons per year

Present-day human carbon emissions could even exceed the CO2 output of several supervolcano eruptions, including the giant eruption that will eventually occur at Yellowstone National Park, Gerlach wrote in the American Geophysical Union's newsweekly Eos. These mega-eruptions are very rare, with the last one occurring 74,000 years ago in Indonesia.

(Excerpt) Read more at news.yahoo.com ...


TOPICS: Culture/Society; Extended News
KEYWORDS: 350partspermillion; carbondioxide; co2; emissions; humans; spew; volcanoes
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To: NormsRevenge
They said that Mt Pinatubo in the Philippines spewed more green house gases than the whole Industrial Revolution so who is lying?
61 posted on 06/14/2011 2:43:17 PM PDT by mountainlion (A nation that forgets it's past has no future. WinstonChirchill)
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To: mountainlion

These guys making such assertions never show their calculations.


62 posted on 06/14/2011 2:48:48 PM PDT by ngat
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To: WOBBLY BOB

From looking at the records, it seems that man’s contribution to the climate has prevented an ice age.

Naturally, some sort of limit will be impressed on our population eventually. I suspect that there is going to be a very bad world wide famine soon — it won’t be massively deadly in the developed world, but China, Africa, and India will be decimated. It may be enough here to wipe the Constitution away though.


63 posted on 06/14/2011 2:49:43 PM PDT by Born to Conserve
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To: NormsRevenge
Editor and Staff bios

"Stephanie Pappas, Senior Writer, LiveScience

Stephanie interned as a science writer at Stanford University Medical School, and also interned at ScienceNow magazine and The Santa Cruz Sentinel. She has a bachelor's degree in psychology from the University of South Carolina and a graduate certificate in science writing from the University of California, Santa Cruz"

Sheesh, bleeping Einstein here!

64 posted on 06/14/2011 2:49:55 PM PDT by Anti-Bubba182
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To: 75thOVI; agrace; aimhigh; Alice in Wonderland; AndrewC; aragorn; aristotleman; Avoiding_Sulla; ...

And regardless, it means absolutely nothing. The Earth's climate is 100 percent natural 100 percent of the time. Thanks NormsRevenge.



65 posted on 06/14/2011 3:04:03 PM PDT by SunkenCiv (Thanks Cincinna for this link -- http://www.friendsofitamar.org)
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To: NormsRevenge

Makes sense, there are a lot more humans than there are volcanoes.


66 posted on 06/14/2011 3:19:56 PM PDT by count-your-change (You don't have be brilliant, not being stupid is enough.)
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To: Army Air Corps; marvlus; DollyCali; markomalley; Bockscar; Thunder90; Dr. Bogus Pachysandra; ...
Thanx for the ping Army Air Corps !

 


Beam me to Planet Gore !

67 posted on 06/14/2011 3:38:46 PM PDT by steelyourfaith (If it's "green" ... it's crap !!!)
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To: muawiyah
The USGS analysts do not include MID OCEAN RIDGES or RIFTS in their computations considering them to be imponderable.

So they are ignoring 70% of Earth's surface?

68 posted on 06/14/2011 3:55:42 PM PDT by Mike Darancette (Pelosi: Obamacare indulgences for sale.)
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To: NormsRevenge
Light-duty vehicles (mainly cars and pickup trucks): 3.0 gigatons per year

And I read that the CO2 released by coal seam fires in China are greater than that.

69 posted on 06/14/2011 4:06:30 PM PDT by Mike Darancette (Pelosi: Obamacare indulgences for sale.)
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To: NormsRevenge
Cement production: 1.4 gigatons per year

I stopped reading here. The production of cement releases CO2 into the air, as limestone is calcined to produce calcium oxide. However, once the cement is made into concrete, it absorbs The same amount of CO2 as was release in its production. The net effect on the atmosphere is exactly zero. Granted, it may take months or even a few years for the absorption process to complete, but that doesn't alter the fact that the net CO2 addition to the atmosphere is zero.

70 posted on 06/14/2011 4:21:21 PM PDT by JoeFromSidney (New book: RESISTANCE TO TYRANNY. A primer on armed revolt. Available form Amazon.)
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To: SunkenCiv
And regardless, it means absolutely nothing. The Earth's climate is 100 percent natural 100 percent of the time.

You got that right, Civ.

71 posted on 06/14/2011 5:41:33 PM PDT by TheOldLady (FReepmail me to get ON or OFF the ZOT Lightning ping list.)
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To: NormsRevenge
Just plain nonsense. Even on a geologic timescale it's simply ridiculous to compare human activity with that one plume shooting into the stratosphere in Chile, earlier this month.

And carbon dioxide it a trace gas these days and has been throughout the Holocene. All the sewers of all the cities on Earth, and all the hog farms in Iowa and North Carolina, put together can't compete with one volcano's blast of sulfur dioxide.

None of them can compare with the allegorical B.S. in this one ruinous article.

Which story will be parroted by your local newscast tonight. This one or the latest studies showing the solar cycles and the interplanetary magnetic field have apparently begun showing a weakening magnitude pattern, perhaps preceding a new Maunder Minimum and Little Ice Age?

72 posted on 06/14/2011 6:42:06 PM PDT by Prospero (non est ad astra mollis e terris via)
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