There is only one goddess Gaia and Al Gore is her only prophet...
Quote:C-S-Fe Geochemistry of Some Modern and Ancient Anoxic Marine Muds and Mudstones
So, chemical reactions occur when Carbon, Sulphur and Iron come together. Is that going to take CO2 out of the atmosphere in sufficient quantities?

Quote:Google "Anoxic marine zones" if you want to see areas where modern oil deposits are forming where carbon bearing detritus is being continually buried beneath eroded silts.
First result:

http://geology.geoscienceworld.org/cgi/con...bstract/4/5/297

"The production of methane in anoxic environments can lead to significant accumulations of this gas in appropriate marine sediments. However, the uniformly low methane concentrations in marine, anoxic, sulfate-reducing sea water and sediments represents a balance between production by methanogenic bacteria and consumption by sulfate-reducing bacteria. The primary sink for anaerobically generated methane in marine sediments is sulfate reduction, not aerobic oxidation."

Second result:

http://www.answers.com/topic/anoxic-zone

"In the open ocean, the only large regions which approach anoxic conditions are between 165 and 3300 ft (50 and 1000 m) deep in the equatorial Pacific and between 330 and 3300 ft (100 and 1000 m) in the northern Arabian Sea and the Bay of Bengal in the Indian Ocean... in pore waters of slowly accumulating deep-sea sediments, oxygen may never become totally depleted."

Third result:

http://en.wikipedia.org/wiki/Dead_zone_(ecology)

Nowhere any mention of anoxic zones on ocean floors. It usually happens in polluted coastal and stagnant surface waters.

As expected, because this is how it works: The Conveyor Belt

Quote:the Moon does contribute warming through this interaction
You mean it made earth warmer when it was closer? So we're having global cooling now because the moon is further away?

Quote:Here's one; http://aces.nmsu.edu/pubs/_circulars/circ556.html
Tomatoes? We can't live on tomatoes. Where is the link for the 30 to 40% increase for rice and other grains?

This one? It mentions 30 to 40%, and claims that will hold for all plants (written by a mechanical engineer, so he should know). Or this one, from the NCPA? They claim improvements of up to 219% for conditions with water shortage. They also claim a 10 to 55% improvement for corn, which is very strange because corn is a socalled C4 crop (C4 plants don't benefit from more CO2 in the air).

I think you better look here:

Climate change and agriculture

"In 2005, the Royal Society in London concluded that the purported benefits of CO2 fertilization are likely to be far lower than previously estimated when factors such as increasing ground-level ozone are taken into account."

"Cooked rice grain from plants grown in high-CO2 environments would be firmer than that from today's plants. However, concentrations of iron and zinc, which are important for human nutrition, would be lower. Moreover, the protein content of the grain decreases under combined increases of temperature and CO2"

"Studies have shown that higher CO2 levels lead to reduced plant uptake of nitrogen (and a smaller number showing the same for trace elements such as zinc) resulting in crops with lower nutritional value"

Carbon Dioxide's Role in Plant Growth

"C4 plants already use CO2 efficiently. An increase in the concentration does not help them much."

"Yields of some crops can be increased by up to 33%. This is the effect of doubling CO2 concentrations over Earth normal. Still higher concentrations can be expected to yield still better results. Note, however, that the effects vary even among different types of C3 plants. Some are better able to take advantage of higher CO2 concentrations than others, and a few actually suffer if CO2 concentrations are raised."

High Carbon Dioxide Levels Can Retard Plant Growth, Study Reveals

"Writing in the journal Science, researchers concluded that elevated atmospheric CO2 actually reduces plant growth when combined with other likely consequences of climate change – namely, higher temperatures, increased precipitation or increased nitrogen deposits in the soil."

This one sums it up pretty neatly: Climate myths: Higher CO2 levels will boost plant growth and food production

Quote:If I need to rely on a poisonous plant for sustenance maybe this is the wrong place to live, or maybe there are other crops I can use the survive.
Well, 10% of all plants, and 60% of all crop plants contain cyanide. Normally, high levels of protein help to neutralise it, but the study I referenced showed that higher CO2 levels can increase cyanide concentrations, and lower protein content at the same time. Cassave just happens to exhibit this behaviour more strongly. That's a real pity, btw, because it was one of the more promising crops to help us out in a warmer future.
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There is only one goddess Gaia and Al Gore is her only prophet... - by Zenda - 01-03-2010, 11:29 PM

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