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China To Tap Combustible Ice As New Energy Source
lilbridge writes "Huge reserves of "combustible ice" — frozen methane and water — have been discovered in the tundra of the Qinghai-Tibet Plateau in China. Estimates show that there is enough combustible ice to provide 90 years worth of energy for China. Burning the combustible ice may be a far better alternative than letting it just melt, releasing tons of methane into the air."
"Does the resulting CO2 from burning methane contribute less to greenhouse effect then the pure methane?"
Very much so. It really is a win win.
"To any truly impartial person, it would be obvious that I am right."
Yes, 25 times less.
Yes, methane is a much more potent greenhouse gas than carbon dioxide. Over the twelve or so years it lasts in the atmosphere, it would have about twenty times the effect of the CO2 produced from burning it.
Not just that, but it oxidises to CO2 in the atmosphere anyway, and if it's used as an energy source, you can also factor in the CO2 that isn't being emitted from alternative sources.
If it's practical to tap the methane, it's a win-win situation.
"Hydrate" describes the chemical composition. "Clathrate" describes the cage structure.
(a) And what exactly does methane turn into as it floats around in the atmosphere?
(b) You're correct - oxidation of one CH4 molecule produces one CO2 molecule and two H2O molecules.
Methane hydrates are believed to form by migration of gas from depth along geological faults, followed by precipitation, or crystallization, on contact of the rising gas stream with cold sea water
Yeah. Would you choose a neurosurgeon who pokes around people's brains in his spare time? I wouldn't.
James Duncan is correct. Methane has 25 times the warming potential of carbon dioxide over a period of 100 years. The half-life of methane in the atmosphere is not a few weeks, but seven years. Burning methane, even if the energy produced is wasted, reduces the warming potential of the gas.
What a fool believes, he sees, no wise man has the power to reason away.
The water vapour from burning methane (or anything else) is completely irrelevant (unless you're planning to burn the methane in the stratosphere)
Water vapour is a feedback, not a forcing. 70% or so of the surface of the Earth is open water. It's constantly evaporating and falling back as rain.
So quickly does the water vapour reach equilibrium that you could instantaneously remove ALL the water vapour from the atmosphere and not have any significant effect on the climate. Within a couple of weeks the water vapour will be back. The thermal inertia of the oceans and atmosphere will be amply sufficient to stop a catastrophic temperature fall during those two weeks.
CO2, OTOH, is a forcing. Instantaneously remove all the CO2 and the temperature will start to drop. As the temperature drops H2O will start to condense out. Within a few millennia we'd be back into a deep ice age. (Slowly, mainly from vulcanism, the CO2 will be replaced in the atmosphere and, with the right orbital forcings, eventually the planet would escape from the ice age again)
Or add CO2 to the atmosphere and the temperature will go up. That will cause more H2O to go into the atmosphere which will cause the temperature to rise more. Eventually an equilibrium will be reached but it takes centuries to millenia for the ocean temperature and hence water vapour to reach equilibrium for any significant step change in CO2.
Tim.
God said, "div D = rho, div B = 0, curl E = -@B/@t, curl H = J + @D/@t," and there was light.
No, tundra is permanently frozen subsoil. The surface layer of soil melts and causes the huge pools of standing water you see in all of the documentaries of the Arctic. Home to incredible amounts of mosquitoes. Truly unbelievable amounts. Really.
"Think about how stupid the average person is. Now, realise that half of them are dumber than that." - George Carlin
Um... tundra is permanently frozen ground. Not a lot of mosquitoes can lay their eggs in a puddle of ice.
More accurately, tundra is permanently frozen subsoil. In most areas the top layer of soil melts each summer, and due to the impermeable permafrost layer beneath, tundra areas tend to be very boggy.
As a result, Tundra areas can have some of the highest concentrations of mosquitoes in the world: http://www.athropolis.com/arctic-facts/fact-mosquito.htm
Tibet became a province of China for a few hundred years. A hundred years ago, the people who destroyed the last dynasty of China and united the nation (the Nationalist Party which is the current ruling party of Taiwan, the Communist Party, and a bunch of democratic parties currently in mainland China) originally wanted to take the 18 original-Chinese provinces back from Manchu people (the ruling civilization of China's last dynasty), excluding Tibet etc.
That's originally. But if you know Chinese history, China breaks up into some 2 to 10+ countries every 250-400 years after its first unity. And the final goal and hope of every scholar and power are to unite the country. In those countries, many are formed by non-Chinese civilizations, and somehow, they also share the same goal, unite China, including themselves. Now back to modern history. When Republic of China was still fighting to unite the country, Tibet decided to join Republic of China. It break away again when the communist party come in power. But being in China for a few hundred years, most Chinese already see it as part of the country (and China have a lot of civilizations living in their own place within China all the time, so we're also used to that). So basically, the communist party and even Republic of China see it as part of the country. It's more like "unite the country" instead of "invade it". Note that Republic of China (Taiwan) does not recognize the independence of Mongolia until a few years ago, under the very same reasoning, and many Chinese people who know how the history is still very angry about that. Because Chinese already see the Qing Dynasty area as "China". And the rule of Chinese based culture is, a country always have a chance to break up, but must finally be united.
Anyway, the "liberation" (in Communist term) of Tibet had never been and will never be see as "invading" in China, so I don't think we'll ever see that as "lose face". It's never in Chinese question. Also, it IS a peaceful action. In fact, a very peaceful one. How did the government of the then Tibet and Dalai Lama remained safe after the communist's conquer? Because they were just forced out of the palace and power but were not hurt. It was a war to unite another piece of land in Chinese view, and this is probably as peaceful as it could have been.
No, I'm not communist. No I'm not from mainland. But I know the common Chinese view better than you. Don't use western view when trying to interpret other culture's history. It simply doesn't work because people don't think the same way as you.