Monday, October 12, 2009

The Methane Time Bomb


Now-a-days we hear a lot about anthropogenic warming of the globe. Carbon dioxide in the atmosphere has increased from 280 ppm to about 387 ppm thanks to the burning of fossil fuels during a period of 250 years. Most of the carbons emissions have taken place in the last fifty years. As a result, the glacier and polar ice deposits have melted and we are already feeling warmer winters and hotter summers. Scientific community, including the IPCC, believe that, if something urgent is not done, the future of mankind will be doomed.
Carbon dioxide emissions are less serious than methane emissions in that methane is nearly eighty times more potent than carbon dioxide when a period of twenty years is reckoned.
Methane has many anthropogenic sources such as cattle, sheep, buffaloes and camels, and rice fields and toilet tanks. But far greater is the danger from methane stored up in the permafrost regions surrounding the Arctic Circle. When the sea and land ice melts owing to increased carbon emissions, the ice cover in the cold regions of the earth on land and at sea will melt away. Hit by direct sunlight, the sealed up reserves of methane will escape to the atmosphere. If three billion tons of methane from the permafrost is released, the consequent warming will be equal to that from the anthropogenic carbon dioxide emissions for a year.
The frozen seas will further melt releasing more methane. Besides, when the ice cover shrinks, more sunlight will be absorbed by the ocean and the denuded land. At present sunlight falling on the ice covered land and sea is getting reflected back to the space. A brisk chain reaction is likely to follow.
This is no fiction or figment of imagination. Such things have happened in the past causing global temperature to rise by more that 5C and destroying more than ninety percent of the species in the planet. It took millions of years before a normal state returned.
All religious philosophies are anthropocentric, except the core Hindu philosophy. The Islam and Christian philosophies hold that the universe was created for the benefit of mankind, that is, all the plant and animal species were created for the comfortable existence of humans. In fact, man is only one of the numerous species of life and the only species capable of transforming the environment to its advantage. In modifying the nature, man has imperilled his own existence as well as that of millions of other life forms around him. If he is allowed to go on unbridled, he will cause destruction of not only his kind but also of all other forms of life on earth. The Super Intelligence or the Ultimate cannot and will not allow this to happen. The Ultimate Intelligence must have a scheme which will, by destroying the destroyer of all other species, preserve the life on earth.
The methane time bomb is, perhaps, His answer for the arrogance and avarice of man, the self styled crown of creation.
Far from his original environment, man will find it difficult to adapt himself even to the marginal change in his surroundings like temperature rise, sea level elevation or excess or deficient rainfall. Population density has left little room for movement to more favourable territories.
The percentage of world population living in cities has, over the last century, increased dramatically and the number of people who live by producing things essential for existence have come down correspondingly.
A moderate crisis in the weather pattern will trigger the economic time bomb, which will reduce human population to well below a billion, and leave the other species more or less intact.

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