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Do you realize that the Arctic Ocean is a lot larger than that few square inches on a globe?
Where is your proof that an underwater volcano has ever created a temperature rise of the extent we are now seeing in the Arctic Ocean over an area the size of the Arctic Ocean?
How do explain frozen tundra in the Arctic on land defrosting and being exposed to the air for the first time in over a million years?
How does you underground volcano un-freeze land as well?
Do you understand the source of the Methane? Do you know what methane hydrates are?
Anthropogenic CO2 increase
While CO2 absorption and release is always happening as a result of natural processes, the recent drastic rise in CO2 levels in the atmosphere is known to be mainly due to human activity. Researchers know this both by calculating the amount released based on various national statistics, and by examining the ratio of various carbon isotopes in the atmosphere, as the burning of long-buried fossil fuels releases CO2 containing carbon of different isotopic ratios to those of living plants, enabling them to distinguish between natural and human-caused contributions to CO2 concentration.
Burning fossil fuels such as coal and petroleum is the leading cause of increased anthropogenic CO2; deforestation is the second major cause. In 2010, 9.14 gigatonnes of carbon (33.5 gigatonnes of CO2) were released from fossil fuels and cement production worldwide, compared to 6.15 gigatonnes in 1990. In addition, land use change contributed 0.87 gigatonnes in 2010, compared to 1.45 gigatonnes in 1990. In 1997, human-caused Indonesian peat fires were estimated to have released between 13% and 40% of the average carbon emissions caused by the burning of fossil fuels around the world in a single year. In the period 1751 to 1900 about 12 gigatonnes of carbon were released as carbon dioxide to the atmosphere from burning of fossil fuels, whereas from 1901 to 2008 the figure was about 334 gigatonnes.
This addition, about 3% of annual natural emissions, as of 1997, is sufficient to exceed the balancing effect of sinks. As a result, carbon dioxide has gradually accumulated in the atmosphere, and as of 2013, its concentration is almost 43% above pre-industrial levels., Various techniques have been proposed for removing excess carbon dioxide from the atmosphere in carbon dioxide sinks.
Originally posted by poet1b
reply to post by eriktheawful
While you are at telling people how to have an intelligent discussion, maybe you can address all the anti-GW poster who throw their cheap shots up on the thread.
The only thing I know for sure from watching all this over the past 15 years is: as far as Climate Change goes.....we still have a lot to learn about Climate Change.
Scientists don't see any significant connection, however.
With news this week that polar ice is melting dramatically, underwater Arctic pyrotechnics might seem like a logical smoking gun. Scientists don't see any significant connection, however.
"We don't believe the volcanoes had much effect on the overlying ice," Reeves-Sohn told LiveScience, "but they seem to have had a major impact on the overlying water column."
The ocean is better carbon sink than land so it does take some of that added Co2 and that's why the oceans are warming faster than the surface, that is exactly where we find our temperature discrepancies
Originally posted by TheRedneck
Good morning everyone.
reply to post by wehavenoclue
In order to act as a greenhouse gas, CH4/CO2 must be in a position to absorb and re-emit infrared radiation. If they cannot absorb and re-emit infrared radiation, they cannot act as a greenhouse gas. That is the very basis of the theory.
In the atmosphere, radiation from the earth can encounter a greenhouse gas molecule, be absorbed, then be re-emitted in a random direction, meaning a certain percentage will be be re-emitted toward the earth. In the ocean, there is no absorption and re-emission, because there is no radiation emitted through the water; if any is emitted, water itself will insulate so well as to make any dissolved gasses irrelevant. All oceanic heat emission is from the surface into the atmosphere.