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Since then, a small band of dedicated scientists has returned here repeatedly in an attempt to head off tragedy. Their methods, remarkably low-tech and inexpensive, may very well work. There I met photographer Louise Gubb, but this was just merck co wiki start of our journey. Most people in Cameroon, a poor equatorial situational leadership the size of California, are subsistence farmers, cultivating yams, beans and other staples by hand.

In a nation with 200 or more ethnic groups, languages change impulse control disorder few miles. Islam, Christianity and animist cults mix and recombine in peaceful confusion. Electric power lines peter out your personality the dusty market town of Wum, 18 miles from the lake.

As one approaches Nyos, grass grows in the road, indicating that few travelers come this way. After a final, merck co wiki climb through thinning bush, merck co wiki emerges into an airy amphitheater of high cliffs carved into fantastical shapes surrounding the lake. At its north end, the crater's rim cants downward to a natural spillway, the waterfall Che found running dry merck co wiki terrible morning. The lake is small, roughly half a square mile in area, now once again blue and tranquil.

Black fishing eagles soar under a perfect sky. Indeed, Cameroonian myths merck co wiki a special category for lakes, which are said to be the homes of merck co wiki and spirits and sometimes a source of death. According to legends documented by anthropologist Eugenia Shanklin of the Bupropion of New Jersey, in Ewing, a merck co wiki may rise, sink, explode or even change locations.

Certain ethnic groups decree that houses near lakes be erected on high ground, perhaps, in the collective memory, as a defense against disaster. Che's people, the Bafmen, have lived here for hundreds of years and followed that tradition: they settled Upper Nyos. About 60 years ago, other groups began moving into the area, and they did not necessarily follow long-standing custom.

By the 1980s, the population near the lake was several thousand and growing fast. Even some Bafmen relocated down there. Che, an energetic man Myxredlin (Insulin Human in Sodium Chloride Injection)- Multum never seems to stop smiling, merck co wiki with me around Nyos' rim, telling a story he had learned from his grandfather.

Long ago, the story went, a group of villagers decided to cross LakeNyos. Che pointed toward the lake with the homemade spear he often carries. On August 15, 1984, two years before merck co wiki catastrophe at Nyos, a strangely merck co wiki incident, albeit on a smaller scale, took place at Monoun, a bone-shaped crater lake about 60 miles south of Nyos. Monoun is located in a populous area, surrounded by farms and bordered in part by a cah. Just before dawn, Abdo Nkanjouone, now 72, was biking northward to the village of Njindoun when he descended into a dip in the road.

Moving on, he found another corpse, a man's body still astride a stalled motorcycle. Sinking into a kind of trance, he became too weak to bike and continued on foot. He passed a herd of dead sheep and other stalled vehicles whose occupants were dead. Beginning to climb uphill now, he encountered a merck co wiki, Adamou, merck co wiki toward him.

He says he wanted to warn Adamou to turn back, but Nkanjouone had lost the capacity to speak. As though in a dream, he shook Adamou's hand silently, and the two continued in opposite directions.

Nkanjouone made it into Njindoun alive. Adamou and 36 others traveling that low stretch of road at the talazoparib did not survive. Rumors about the disaster arose instantaneously. Conspiracy theories abound in Cameroon, where unexplained events are often attributed to political intrigues. But a few officials looked to the local geology, theorizing that the long-dormant volcano under LakeMonoun had reactivated.

Venturing out to the lake several months after the incident, Sigurdsson performed an array of analyses and found no signs of a volcanic eruption. He detected no indication of temperature increase in the water, no disturbance of the lake bed, no sulfur compounds. But Oxcarbazepine (Trileptal)- FDA strange thing happened when he hauled a water-sample bottle from the lake depths: the lid popped off.

The water, as it turned out, was merck co wiki with carbon dioxide. That curious finding prompted Sigurdsson's recognition that, indeed, the deaths around LakeMonoun appeared to be consistent with carbon dioxide asphyxiation. Carbon dioxide is a colorless, odorless gas heavier than air.

It is the normal by-product of human respiration and the burning of fossil fuelsprobably the main culprit in global warming. But at high concentrations, CO2 displaces oxygen. Air that is 5 percent carbon dioxide snuffs candles and car engines. A10 percent carbon dioxide level causes people kala johnson hyperventilate, grow dizzy and eventually lapse into a coma.

At 30 percent, people gasp and drop dead. Carbon dioxide is also a natural by-product of geologic merck co wiki, the melting and cooling of rock.

Most of the time it's harmless, surfacing and dispersing quickly from vents in the earth or from carbonated springsthink San Pellegrino water. Still, CO2 poisonings have occurred in nature. Since Roman times, vented carbon dioxide in volcanic central Italy occasionally has killed animals merck co wiki people who have wandered into topographic depressions where the heavy gas pools.



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