Related Posts with Thumbnails
Showing posts with label THE GREAT INDIAN POLLUTION. Show all posts
Showing posts with label THE GREAT INDIAN POLLUTION. Show all posts

Saturday, December 6, 2008

The Mystery Of the Red Rain In Kerala

Today i was skimming through the articles of "India Today" magazine.I was shocked when i came across this article which i would like to share with you.It is about the mystery of the strange phenomena in Kerala.Most of you will be lending an ear to this topic for the first time.Hope you make out something from it.

SCARLETS OF FIRE:
With scientists unable to crack the mystery surrounding the red rain and a series of other strange natural phenomena in Kerala, the possibility of a big disaster like an earthquake is looming large on the people's minds. A report by INDIA TODAY's Special Correspondent M.G. Radhakrishnan.
Dug wells disappearing, undug wells appearing—on their own—sheets of red rain lashing and groves of trees rumbling as their monsoon green turns into charred grey. Something has gone terribly wrong. Could it be a signal of something worse to come? An earthquake perhaps? Or is it just a colour coincidence, as one Lok Sabha MP chose to see it? Red rain, he had said tongue-in-cheek, after the Reds' recent humiliating electoral defeat. In God's Own Country, someone else said, anything is possible.
After centuries of advance, even the scientific community appears to be agreed on that. Anything is possible. As theory after elusive theory comes forth to account for the strange phenomena—the disappearing and the appearing wells, the red rain, the burnt leaves—that parts of Kerala have witnessed in the past two months, there's been little consensus on what's been happening. And little comfort for those like retired school master K. Gopinathan Pillai, who actually saw the dusty red raindrops as he sipped his morning coffee in the verandah of his Bharanikkavu home in Kollam district.

The red rain was first reported at Changanasserry in Kottayam district on July 25. According to the locals, a loud sound like a thunderclap was heard at around 5.30 a.m. accompanying which was a flash of light. What followed was a three-hour spell of heavy rain, 15 minutes of which, they claim, was a scarlet sheet. Following the rain, large tracts of trees shed burnt leaves.
The Centre for Earth Sciences Studies (CESS) of Thiruvananthapuram, which took samples of the rain for a probe, following a directive by the state Government, first said it was meteoric dust. It claimed that a meteor travelled from the west to the east and exploded towards the east of Madhumala junction in Changanasserry. The burning meteor threw around 1,000 kg of fine dust which came down as red rain. A week later, CESS changed its stand after making a chemical and biological analysis of the water samples. It said the red coloured cell structure was biological in nature and has been tentatively identified as spores of some species of fungus. The spores are being cultured to determine the exact species by the Tropical Botanical Garden and Research Institute (TBGRI). The chemical analysis showed the presence of various elements like carbon, silicon, calcium, magnesium, aluminum, iron, sodium, potassium besides traces of phosphorous, titanium, chromium, manganese, copper and nickel.

Yet to arrive at a conclusion, the CESS candidly admits that several questions remain unanswered. What, for instance, had produced the huge quantity of spores? Was the source local or alien? If alien, how was the mass transported without getting disbursed over a larger area? And how were the spores injected into the clouds? "While the cause of the colour in the rainfall has been identified, finding the answers to these questions is what is posing a challenge," says Dr M. Baba, director, CESS.
Meanwhile, meteorologists at the Centre of Monsoon Studies have put forward a radically different hypothesis for the coloured showers. According to them, the fine dust blown into the Arabian sea from the deserts of West Asian countries are colouring the Kerala rain. In a reported statement, Dr P.V. Joseph, a former director with the Indian Meteorology Department (IMD), said the dust-laden air from the Arabian dust-bowl moves southwards and turns east over central Arabian Sea towards the Kerala coast. This, he says, "got mixed with the monsoon rains".
Significantly, no red rains have been reported anywhere in the country so far. At the same time, however, the phenomenon is not unprecedented the world over. A website called strangemag.com records three instances of red rain in Europe, all in the 19th century. The information has been collected from The American Journal of Science and Arts of 1819 and two books of the same period, The Romance of Natural History (James Nisbet and Co) and Strange Phenomena; A sourcebook of Unusual Natural Phenomena (William A. Corliss). According to this data, red rains occurred in Naples, Italy in 1818. And on analysis the water was found to have been composed of silex, alimina, chrome, carbonmic acid and a cumbustible substance of a carbonaceous nature. It was thought to be of "volcanic origin and that the presence of chrome assimilates it with meteoric stones". Against this background and the claim made by the locals that they saw a flash and heard a strange sound are what appear to have prompted CESS scientists to initially ascribe the cause to a meteoric explosion.
The red rain apart, another point of debate has been the disappearance and appearance of wells. In the past couple of months, nearly 200 wells have reportedly been covered up while several news ones have been formed with the earth caving in in parts of Kerala. While none of these events has caused any damage or injury, many fear that these, especially the well collapse, are precursors to some natural disaster. Particularly so since Kerala experienced an earthquake in December last year which was of the highest intensity (5 on Richter scale) recorded in the state. The quake was followed by more than 50 minor after shocks in almost all parts of the state for the next two months.
Although the earthquake or the subsequent microsiesmic activity did not result in any deaths, thousands of buildings suffered cracks of various magnitudes. With the state falling under seismic zone. 3, scientists do not rule out the possibility of more earthquakes in the future. According to seismologists, many pre-existing geological faults in the area have been reactivated.
CESS, which led the investigation into the wall-collapse as well, has ruled out any reason for panic but it has been cautious in its remarks. "In the absence of ground vibrations or other perceptible sounds felt in the region during the period of well collapse incidents, it is difficult to relate them immediately to earthquake phenomenon," a report submitted to the Government said. The report, prepared by CESS, the Geological Survey of India (GSI), the Central Ground Water Board (CGWB) and state departments, has ascribed the well collapse to the type of well lining, lithological conditions, rainfall intensity and ground water recharge.

Baba argues that there are more than 50 lakh wells in the state, many of which routinely cave in during monsoons. "Now every incident gets reported. That is all," he says. According to him Kerala had heavier rains during this monsoon than last year. As per the report, the state received about 2000 mm more rainfall this year than the previous year. Increased ground water recharge during the rains which builds up differential water pressure and pore pressure at the bottom result in collapse of wells, elaborates the report. Moreover, the affected wells were mainly located in coastal, sandy, alluvial tracts which were less cohesive. As for the threat of earthquakes, Baba says Kerala can have only minor ones, which at worst can cause minor cracks in buildings. "With the construction pattern Kerala has, no quake is likely to cause a heavy toll," he explains. "Remember it is not the quake but the buildings which kill people."

However, not all scientists are willing to dismiss the phenomena as ordinary. "Serious tectonic activities are going on in this region and the incidents are their manifestations. Whether it would lead to a major earthquake is not sure," says John Mathai, a seismologist with CESS who did a detailed study of the well collapse. According to him, more than the rains it is the stress built up by increased tectonic activity which led to the caving in of the wells. Differences in water table was one important precursor to the 1975 quake in China's Yanshan belt which killed 6.5 lakh people, he adds.

Dr P.K. Thampy, former director of CESS and geologist, prefers to play it safe. "Available scientific knowledge cannot say if these phenomena are going to cause any quake. Neither can we say that they will not cause them." With the prediction of earthquakes still largely impossible, he feels even constant monitoring may not fully help in averting such a disaster. "All we can do is to evolve ways to mitigate the damage and manage the disaster," he says. Under the circumstances, he couldn't be more right.

Friday, July 11, 2008

PICK UP YOUR BROOMSTICKS!!!!

Lead India, Teach India, how about Clean India?
India has developed at so many fronts, be it technology or knowledge. 'India Rising' and 'India Shining' is what the country is boasting of, but no one cares for the dirty India. Here's an appeal to everyone. Lets 'Clean India'! .
A 70 years old ex-serviceman:

"20 years back, Bangalore was a retired man’s heaven. Looking at it now, hell is the best word for it!"

A 45 years old business tycoon:

"I have been to so many countries around the world but haven’t seen a dirtier place than India. I feel ashamed to call it my country!"

A 20 years old student:

"Why should I abstain? I may do it but what about the one billion others? How will I make a difference? Things will remain the same!"

Three people, three opinions. One billion people, quite a many opinions. So many opinions, but not even a single solution. Although all the opinions had a few suggestions, but none of them turned into any solution. And the reason is that the suggestions did not get enough shoulders to carry them to a solution. In simple words, many of us have ideas but we never get volunteers to make the idea a possibility, and slowly the idea fades away into the darkness of the real world.

If we think upon the old man’s concern, who turned the Garden City of India into hell? It is us. And why just Bangalore, any city or even village in India would fit well into this hellish frame. And the businessman has all rights to feel sorry about his country, after all Mumbai streets are way behind the streets of London on any scale. But I would like to ask him if he drops his cigarette pack on any street anywhere in the world? Why only in India? The youth is supposed to be the spark for any change in the society, and if they all think on the lines of our student then the society is doomed to stagnate. One person makes a difference big enough, if not very big.

In the recent past, we have witnessed the campaigns launched by The Times of India like ’Lead India’ and ’Teach India’. I wonder how successful they have been but at least the whole country participated in it. We need a similar well-advertised campaign to make India a better place to live in. ’Clean India’, appropriately swims along the wave. The river Ganga, a symbol of purity, is a perfect example of the layer of dirt that India has been coated with. No one likes to walk along a heap of garbage. Where shall we go when the lanes will be full of the dislikeable stuff? That day is bound to arrive, unless we pledge to clean our surroundings, clean India.

Looking deeply, India is not that dirty everywhere. The shining floors of the malls, movie complexes and restaurants around the country speak so. Ever wondered why they are clean and not the outside world? That’s because we hesitate in spoiling a clean environment. And of course the janitors and dustbins help the cause. So why not replicate that in the outside world? It’s the same person who looks for a dustbin to throw a piece of paper in a mall and doesn’t think once to drop a packet of rotten fruits on the road. We all abstain but not everywhere. If we abstain and make India clean, then the clean India will make us abstain.

First things first, stop expecting anything from the government. Even if it means starting with a group of four, it will be a big step. Contribute some money and install dustbins around your area, employ people to clear them daily. It doesn’t take a big chunk of money to make a salary of a janitor. Hoisting banners advertising about the initiative can be of great help. And the most important thing - monitor the progress. Most of the ideas ignite and die because of lack of monitoring. Try implementing on yourself and then spread the word. I am sure these are just few of the many ideas that contribute to the initiative.

As I said in the beginning, no idea becomes a solution unless we get volunteers. Today I am the only one starting this. I’m sure people will step up and join me. And why shouldn’t they? Who doesn’t want a cleaner India? Everyone likes a cleaner home. Then lets do it. Lets make it possible!

Waiting for more ideas, and volunteers. Lets ’Clean India’!

Pollution prevents Global Warming for the first time


A blanket of smog hanging over India means the country is getting less and less sunlight, warn researchers. But this phenomenon, known as “solar dimming” may also protect against global warning.

India is getting about 5% less sunlight than it did 20 years ago, according to a study by Padma Kumari and colleagues at the Indian Institute of Tropical Meteorology in Pune. They studied data from the India Meteorological Department, measuring differences in solar radiation at 12 stations across India between 1981 and 2004.

They found that the amount of solar radiation reaching India's land mass dropped on average by 0.86 watts per square metre each year. The decrease was greater during the 1990s than the 1980s, and on average corresponded to a 5% drop in sunshine over the two decades.

India is losing out on sunshine because a cloud of tiny air-borne particles released by the nation's industries hovers above the subcontinent, blocking light from reaching the Earth.
Masked warming

Similar dimming has been caused by Western nations too. The smog produced by the US and Europe during the 20th century spread worldwide and was responsible for a phase of "global dimming". But when the West cleared up its smog pollution in the 1980s and 1990s, as smog pollution in India was increasing, clearer skies returned. Researchers have described this as "global brightening".

According to research published in February 2007 by Martin Wild of the Institute for Atmospheric and Climate Science in Switzerland, this global brightening was accompanied by an accelerated rise in global temperatures (Geophysical Research Letters DOI: 10.1029/2006GL028031).

Similarly, Kumari and colleagues believe that the real degree to which India is being warmed by greenhouse gas emissions is being masked by the cooling effect of the smog. Looking at temperature records since the 1980s, they found that maximum and minimum temperatures have both increased, but to different extents.
New phase

Maximum temperatures, which occur during the day and are driven by sunshine, have risen by just 0.04°C because of the protective effect of the smog. Meanwhile minimum, night-time temperatures, which are independent of sunshine, have risen by a much greater 0.31°C.

The researchers also found that solar dimming over India was lessened during the monsoon season because the torrential rains brought the fine particles back down to Earth, allowing more sunshine to get through.

Other Asian countries are also likely to be experiencing solar dimming. Preliminary data that Wild and colleagues have from China suggests it is getting less and less sun as well because of rising particle pollution linked to industrialisation.

So will the rising smog over India and China bring about a new phase of global dimming? “There are good chances there indeed,” says Wild. He and his team are currently in the process of updating data in the Global Energy Balance Archive, which tracks sunshine levels at 2500 sites worldwide

THE INDIAN ARCHIVE