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Bihar and Jharkhand is facing one of the gravest natural disasters in the form of arsenic contamination of ground water. by Dr. Nitish Priyadarshi Thousands of people living in over hundreds of villages in different district of Bihar and Sahebganj district of Jharkhand state in India are facing serious threat to their health due to alarmingly high quantity of arsenic present in the underground water. Bihar is facing one of the gravest natural disasters in the form of arsenic contamination of ground water. In the first detailed study of ground water quality, the Department of Environment and Water Management, A.N.College, Patna, has already submitted Interim Reports to PHED and UNICEF about the alarming findings on arsenic poisoning cases in the districts of Patna, Bhojpur, Vaishali and Bhagalpur. The study was conducted from April 2004 to May 2006, the study area being confined to 10 kms. wide belt along the Ganga river as per the instructions of PHED and UNICEF. According to Dr.Ashok ...

Tens of thousands of people living within the danger zone of Mayon Volcano in the Philippines were forced to evacuate to emergency shelters in mid-December 2009 as small earthquakes, incandescent lava at the summit and minor ash falls suggested a major eruption was on the way. On the evening of Dec. 14, the local volcano observatory raised the alert level to Level 3, which means "magma is close to the crater and hazardous explosive eruption is imminent."This natural-color image of Mayon was captured on Dec. 15, 2009, by the Advanced Land Imager on NASA's Earth Observing-1 (EO-1) satellite. A small plume of ash and steam is blowing west from the summit. Dark-colored lava or debris flows from previous eruptions streak the flanks of the mountain. A ravine on the southeast slope is occupied by a particularly prominent lava or debris flow.The Phillipine Star said on Dec. 22 that "ashfall blanketed at least three towns in Albay, raising new health fears for thousands alre...

Population Explosion may trigger Global Warming. by Dr. Nitish Priyadarshi Image credit: http://webecoist.com/wp-content/uploads/2008/11/population-explosion1.jpg The earth’s population has nearly doubled since World War II. More babies than ever than ever have been born, but this is only part of the reason for the increase. More and better food and medical care have kept alive many people who would otherwise have died. This enormous increase in the number of people is called ‘population explosion.’ Many experts believe it is the greatest danger facing mankind. A doubled population means a greater drain on the world’s limited resources. Increasing in population size, age and distribution is affecting climate by producing more green house gases, either in the form of automobile or in the form of thermal energy to meet increasing electricity demand. A larger global population means a larger demand for everything--most urgently, energy. The world population is growing by 75 million peo...

The Dark Side of Black Carbon by Dr. Nitish Priyadarshi Image Credit: NASA As interest in Earth's changing climate heats up, a tiny dark particle is stepping into the limelight: black carbon. Commonly known as soot, black carbon enters the air when fossil fuels and biofuels, such as coal, wood, and diesel are burned. Black carbon is found worldwide, but its presence and impact are particularly strong in Asia. Black carbon, a short-lived particle, is in perpetual motion across the globe. The Tibetan Plateau's high levels of black carbon likely impact the region's temperature, clouds and monsoon season. Black soot deposited on Tibetan glaciers has contributed significantly to the retreat of the world's largest non-polar ice masses, according to new research by scientists from NASA and the Chinese Academy of Sciences. Soot absorbs incoming solar radiation and can speed glacial melting when deposited on snow in sufficient quantities. Temperatures on the Tibetan Plateau -- ...

क्या है समुद्र के नीचे लेमुरिया महाद्वीप का रहस्य ? क्या बदलते तापमान ने इन्हे डुबाया ? झारखण्ड की मुंडा जाती भी शायद इसी महाद्वीप से होते हुए भारत पहुँची। द्वारा डा। नितीश प्रियदर्शी आज सारे विश्व के वैज्ञानिक इस बात पर सहमत हैं की आने वाले समय में पृथ्वी पर कई विनाशकारी बदलाव होंगे। कारन है ग्लोबल वार्मिंग । कई छोटे द्वीप समुद्र में समां जायंगे । कहीं सूखे की मार होगी तो कहीं अतिवृष्टि । कई नए जगह भूकंप प्रभावित होंगे जो पहले नही थे । यानि विनाश का एक नया रूप सामने आएगा। कुछ खोजकर्ता इस बात का दावा कर रहें हैं की माया सभ्यता के कैलेंडर मे इस बात का जिक्र है की सन २०१२, २१ दिसम्बर को पृथ्वी का विनाश हो जाएगा।ऐसी बात नही हे की आने वाले समय में ही विनाश होगा । विनाश अगर होगा भी तो अचानक नही । विनाश की प्रक्रिया धीरे धीरे होती है जैसे पहले हुई थी । जब से पृथ्वी बनी है विनाश के कई चरण हुए है जब कई प्रजातियाँ विलुप्त हुई तथा नई आई हैं। विश्व के सभी जातिओं एवं धर्मो में प्राचीन महाप्रलय का उल्लेख मिलता है । केवल धर्मं ही नही भूवैज्ञानिक साक्ष्य भी पृथ्वी पर कई प्राचीन विनाशकारी हलचल को दर्श...

Varves has the similarity with the regular, annual rings of the trees. by Dr. Nitish Priyadarshi The study of climates during the geological past, is one of the most topical areas of research in the geosciences at present. The threat of future climate change caused by higher levels of green house gases, which would drastically alter many aspects of our environment, has prompted much research to try to understand how our own complex climate system works. Only by understanding how climate has evolved over million of years can we identify important climate cycles with a frequency in excess of the short climate records we possess. These climate cycles have the potential to have a profound effect on our environment. Understanding our climate history in the geological past is also important for climatologists trying to construct accurate numerical computer models of our present climate system to use for predicting future climate change. It is obviously not possible to check the accuracy of m...

For a scientist studying climate change, “eureka” moments are unusually rare. by Dr. Nitish Priyadarshi photo credit:http:// boojum.as.arizona.edu I n 1938, British meteorologist Guy Stewart Callendar made the first proper measurement of global temperature. He gathered data from weather stations worldwide and found that the average temperature of the earth has increased between 1880 and 1930. Sadly, no one took his findings seriously. In 1957, two scientists set up instruments on the Mauna Kea Volcano in Hawaii to measure the level of carbon dioxide in the atmosphere. Its records show that the level of carbon dioxide has been increasing steadily since that time and that the earth is slowly warming up. For a scientist studying climate change, “eureka” moments are unusually rare. Instead progress is generally made by a painstaking piecing together of evidence from every new temperature measurement, satellite sounding or climate-model experiment. Data get checked and rechecked, ideas t...